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Finding the Fourth Proportional to 147,114.60, 220,763.10 and 77,044.20

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Solution

The fourth proportional to 147,114.60, 220,763.10 and 77,044.20 is: 115,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,114.60 : 220,763.10 = 77,044.20 : x
  2. Step 2: Convert to fraction form
    147,114.60/220,763.10 = 77,044.20/x
  3. Step 3: Cross multiply
    147,114.60x = 220,763.10 × 77,044.20
  4. Step 4: Simplify right side
    147,114.60x = 17,008,516,429.02
  5. Step 5: Solve for x
    x = 17,008,516,429.02/147,114.60
  6. Step 6: Final answer
    x = 115,614.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.