Home / 156,285.72-215,532.55-102,550.32

Finding the Fourth Proportional to 156,285.72, 215,532.55 and 102,550.32

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Solution

The fourth proportional to 156,285.72, 215,532.55 and 102,550.32 is: 141,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,285.72 : 215,532.55 = 102,550.32 : x
  2. Step 2: Convert to fraction form
    156,285.72/215,532.55 = 102,550.32/x
  3. Step 3: Cross multiply
    156,285.72x = 215,532.55 × 102,550.32
  4. Step 4: Simplify right side
    156,285.72x = 22,102,931,972.92
  5. Step 5: Solve for x
    x = 22,102,931,972.92/156,285.72
  6. Step 6: Final answer
    x = 141,426.43

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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.