Home / 123,213,526.80-169,981,292.52-74,293,777.68

Finding the Fourth Proportional to 123,213,526.80, 169,981,292.52 and 74,293,777.68

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Solution

The fourth proportional to 123,213,526.80, 169,981,292.52 and 74,293,777.68 is: 102,493,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,213,526.80 : 169,981,292.52 = 74,293,777.68 : x
  2. Step 2: Convert to fraction form
    123,213,526.80/169,981,292.52 = 74,293,777.68/x
  3. Step 3: Cross multiply
    123,213,526.80x = 169,981,292.52 × 74,293,777.68
  4. Step 4: Simplify right side
    123,213,526.80x = 12,628,552,356,239,928
  5. Step 5: Solve for x
    x = 12,628,552,356,239,928/123,213,526.80
  6. Step 6: Final answer
    x = 102,493,230.12

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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.