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Finding the Fourth Proportional to 101,862.60, 140,569.65 and 56,539.02

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Solution

The fourth proportional to 101,862.60, 140,569.65 and 56,539.02 is: 78,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,862.60 : 140,569.65 = 56,539.02 : x
  2. Step 2: Convert to fraction form
    101,862.60/140,569.65 = 56,539.02/x
  3. Step 3: Cross multiply
    101,862.60x = 140,569.65 × 56,539.02
  4. Step 4: Simplify right side
    101,862.60x = 7,947,670,252.74
  5. Step 5: Solve for x
    x = 7,947,670,252.74/101,862.60
  6. Step 6: Final answer
    x = 78,023.44

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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.