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Finding the Fourth Proportional to 156,152.64, 215,490.60 and 84,532.60

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Solution

The fourth proportional to 156,152.64, 215,490.60 and 84,532.60 is: 116,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,152.64 : 215,490.60 = 84,532.60 : x
  2. Step 2: Convert to fraction form
    156,152.64/215,490.60 = 84,532.60/x
  3. Step 3: Cross multiply
    156,152.64x = 215,490.60 × 84,532.60
  4. Step 4: Simplify right side
    156,152.64x = 18,215,980,693.56
  5. Step 5: Solve for x
    x = 18,215,980,693.56/156,152.64
  6. Step 6: Final answer
    x = 116,654.96

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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.