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Finding the Fourth Proportional to 147,059.60, 220,459.80 and 87,832.40

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Solution

The fourth proportional to 147,059.60, 220,459.80 and 87,832.40 is: 131,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,059.60 : 220,459.80 = 87,832.40 : x
  2. Step 2: Convert to fraction form
    147,059.60/220,459.80 = 87,832.40/x
  3. Step 3: Cross multiply
    147,059.60x = 220,459.80 × 87,832.40
  4. Step 4: Simplify right side
    147,059.60x = 19,363,513,337.52
  5. Step 5: Solve for x
    x = 19,363,513,337.52/147,059.60
  6. Step 6: Final answer
    x = 131,671.20

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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.