Home / 112,290,734.45-168,285,541.20-87,393,208.49

Finding the Fourth Proportional to 112,290,734.45, 168,285,541.20 and 87,393,208.49

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Solution

The fourth proportional to 112,290,734.45, 168,285,541.20 and 87,393,208.49 is: 130,972,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,290,734.45 : 168,285,541.20 = 87,393,208.49 : x
  2. Step 2: Convert to fraction form
    112,290,734.45/168,285,541.20 = 87,393,208.49/x
  3. Step 3: Cross multiply
    112,290,734.45x = 168,285,541.20 × 87,393,208.49
  4. Step 4: Simplify right side
    112,290,734.45x = 14,707,013,387,102,656
  5. Step 5: Solve for x
    x = 14,707,013,387,102,656/112,290,734.45
  6. Step 6: Final answer
    x = 130,972,635.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.