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Finding the Fourth Proportional to 95,432.60, 143,148.90 and 89,989.40

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Solution

The fourth proportional to 95,432.60, 143,148.90 and 89,989.40 is: 134,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,432.60 : 143,148.90 = 89,989.40 : x
  2. Step 2: Convert to fraction form
    95,432.60/143,148.90 = 89,989.40/x
  3. Step 3: Cross multiply
    95,432.60x = 143,148.90 × 89,989.40
  4. Step 4: Simplify right side
    95,432.60x = 12,881,883,621.66
  5. Step 5: Solve for x
    x = 12,881,883,621.66/95,432.60
  6. Step 6: Final answer
    x = 134,984.10

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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.