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Finding the Fourth Proportional to 104,800.97, 144,721.42 and 66,572.89

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Solution

The fourth proportional to 104,800.97, 144,721.42 and 66,572.89 is: 91,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,800.97 : 144,721.42 = 66,572.89 : x
  2. Step 2: Convert to fraction form
    104,800.97/144,721.42 = 66,572.89/x
  3. Step 3: Cross multiply
    104,800.97x = 144,721.42 × 66,572.89
  4. Step 4: Simplify right side
    104,800.97x = 9,634,522,646.07
  5. Step 5: Solve for x
    x = 9,634,522,646.07/104,800.97
  6. Step 6: Final answer
    x = 91,931.61

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1.5x scale

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.