Home / 156,337.48-215,571-113,231.71

Finding the Fourth Proportional to 156,337.48, 215,571 and 113,231.71

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Solution

The fourth proportional to 156,337.48, 215,571 and 113,231.71 is: 156,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,337.48 : 215,571 = 113,231.71 : x
  2. Step 2: Convert to fraction form
    156,337.48/215,571 = 113,231.71/x
  3. Step 3: Cross multiply
    156,337.48x = 215,571 × 113,231.71
  4. Step 4: Simplify right side
    156,337.48x = 24,409,472,956.41
  5. Step 5: Solve for x
    x = 24,409,472,956.41/156,337.48
  6. Step 6: Final answer
    x = 156,133.21

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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.