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Finding the Fourth Proportional to 103,718.60, 155,232.30 and 95,424.20

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Solution

The fourth proportional to 103,718.60, 155,232.30 and 95,424.20 is: 142,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,718.60 : 155,232.30 = 95,424.20 : x
  2. Step 2: Convert to fraction form
    103,718.60/155,232.30 = 95,424.20/x
  3. Step 3: Cross multiply
    103,718.60x = 155,232.30 × 95,424.20
  4. Step 4: Simplify right side
    103,718.60x = 14,812,918,041.66
  5. Step 5: Solve for x
    x = 14,812,918,041.66/103,718.60
  6. Step 6: Final answer
    x = 142,818.34

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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.