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Finding the Fourth Proportional to 155,374.60, 233,061.90 and 71,134.60

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Solution

The fourth proportional to 155,374.60, 233,061.90 and 71,134.60 is: 106,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,374.60 : 233,061.90 = 71,134.60 : x
  2. Step 2: Convert to fraction form
    155,374.60/233,061.90 = 71,134.60/x
  3. Step 3: Cross multiply
    155,374.60x = 233,061.90 × 71,134.60
  4. Step 4: Simplify right side
    155,374.60x = 16,578,765,031.74
  5. Step 5: Solve for x
    x = 16,578,765,031.74/155,374.60
  6. Step 6: Final answer
    x = 106,701.90

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1.5x scale

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.