Home / 156,285.48-215,685.54-88,310.28

Finding the Fourth Proportional to 156,285.48, 215,685.54 and 88,310.28

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Solution

The fourth proportional to 156,285.48, 215,685.54 and 88,310.28 is: 121,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,285.48 : 215,685.54 = 88,310.28 : x
  2. Step 2: Convert to fraction form
    156,285.48/215,685.54 = 88,310.28/x
  3. Step 3: Cross multiply
    156,285.48x = 215,685.54 × 88,310.28
  4. Step 4: Simplify right side
    156,285.48x = 19,047,250,429.35
  5. Step 5: Solve for x
    x = 19,047,250,429.35/156,285.48
  6. Step 6: Final answer
    x = 121,874.73

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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.