Home / 112,290,732.95-168,285,538.95-87,393,206.98

Finding the Fourth Proportional to 112,290,732.95, 168,285,538.95 and 87,393,206.98

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Solution

The fourth proportional to 112,290,732.95, 168,285,538.95 and 87,393,206.98 is: 130,972,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,290,732.95 : 168,285,538.95 = 87,393,206.98 : x
  2. Step 2: Convert to fraction form
    112,290,732.95/168,285,538.95 = 87,393,206.98/x
  3. Step 3: Cross multiply
    112,290,732.95x = 168,285,538.95 × 87,393,206.98
  4. Step 4: Simplify right side
    112,290,732.95x = 14,707,012,937,080,834
  5. Step 5: Solve for x
    x = 14,707,012,937,080,834/112,290,732.95
  6. Step 6: Final answer
    x = 130,972,632.84

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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.