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Finding the Fourth Proportional to 104,312.52, 143,897.96 and 66,007.62

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Solution

The fourth proportional to 104,312.52, 143,897.96 and 66,007.62 is: 91,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,312.52 : 143,897.96 = 66,007.62 : x
  2. Step 2: Convert to fraction form
    104,312.52/143,897.96 = 66,007.62/x
  3. Step 3: Cross multiply
    104,312.52x = 143,897.96 × 66,007.62
  4. Step 4: Simplify right side
    104,312.52x = 9,498,361,862.46
  5. Step 5: Solve for x
    x = 9,498,361,862.46/104,312.52
  6. Step 6: Final answer
    x = 91,056.78

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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.