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Finding the Fourth Proportional to 100,695.60, 151,038.60 and 34,129.20

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Solution

The fourth proportional to 100,695.60, 151,038.60 and 34,129.20 is: 51,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,695.60 : 151,038.60 = 34,129.20 : x
  2. Step 2: Convert to fraction form
    100,695.60/151,038.60 = 34,129.20/x
  3. Step 3: Cross multiply
    100,695.60x = 151,038.60 × 34,129.20
  4. Step 4: Simplify right side
    100,695.60x = 5,154,826,587.12
  5. Step 5: Solve for x
    x = 5,154,826,587.12/100,695.60
  6. Step 6: Final answer
    x = 51,192.17

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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.