Home / 123,844,981.26-170,895,966.04-72,915,780.97

Finding the Fourth Proportional to 123,844,981.26, 170,895,966.04 and 72,915,780.97

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Solution

The fourth proportional to 123,844,981.26, 170,895,966.04 and 72,915,780.97 is: 100,617,826.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,844,981.26 : 170,895,966.04 = 72,915,780.97 : x
  2. Step 2: Convert to fraction form
    123,844,981.26/170,895,966.04 = 72,915,780.97/x
  3. Step 3: Cross multiply
    123,844,981.26x = 170,895,966.04 × 72,915,780.97
  4. Step 4: Simplify right side
    123,844,981.26x = 12,461,012,828,429,198
  5. Step 5: Solve for x
    x = 12,461,012,828,429,198/123,844,981.26
  6. Step 6: Final answer
    x = 100,617,826.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.