Home / 112,156,817.20-168,235,225.80-61,138,481.20

Finding the Fourth Proportional to 112,156,817.20, 168,235,225.80 and 61,138,481.20

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Solution

The fourth proportional to 112,156,817.20, 168,235,225.80 and 61,138,481.20 is: 91,707,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,156,817.20 : 168,235,225.80 = 61,138,481.20 : x
  2. Step 2: Convert to fraction form
    112,156,817.20/168,235,225.80 = 61,138,481.20/x
  3. Step 3: Cross multiply
    112,156,817.20x = 168,235,225.80 × 61,138,481.20
  4. Step 4: Simplify right side
    112,156,817.20x = 10,285,646,189,751,056
  5. Step 5: Solve for x
    x = 10,285,646,189,751,056/112,156,817.20
  6. Step 6: Final answer
    x = 91,707,721.80

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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.