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Finding the Fourth Proportional to 127,374.60, 175,591.68 and 89,015.05

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Solution

The fourth proportional to 127,374.60, 175,591.68 and 89,015.05 is: 122,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,374.60 : 175,591.68 = 89,015.05 : x
  2. Step 2: Convert to fraction form
    127,374.60/175,591.68 = 89,015.05/x
  3. Step 3: Cross multiply
    127,374.60x = 175,591.68 × 89,015.05
  4. Step 4: Simplify right side
    127,374.60x = 15,630,302,174.78
  5. Step 5: Solve for x
    x = 15,630,302,174.78/127,374.60
  6. Step 6: Final answer
    x = 122,711.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.