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Finding the Fourth Proportional to 125,101.90, 172,652.94 and 71,395.00

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Solution

The fourth proportional to 125,101.90, 172,652.94 and 71,395.00 is: 98,532.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,101.90 : 172,652.94 = 71,395.00 : x
  2. Step 2: Convert to fraction form
    125,101.90/172,652.94 = 71,395.00/x
  3. Step 3: Cross multiply
    125,101.90x = 172,652.94 × 71,395.00
  4. Step 4: Simplify right side
    125,101.90x = 12,326,556,487.40
  5. Step 5: Solve for x
    x = 12,326,556,487.40/125,101.90
  6. Step 6: Final answer
    x = 98,532.13

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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.