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Finding the Fourth Proportional to 156,658.62, 216,110.28 and 105,606.75

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Solution

The fourth proportional to 156,658.62, 216,110.28 and 105,606.75 is: 145,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,658.62 : 216,110.28 = 105,606.75 : x
  2. Step 2: Convert to fraction form
    156,658.62/216,110.28 = 105,606.75/x
  3. Step 3: Cross multiply
    156,658.62x = 216,110.28 × 105,606.75
  4. Step 4: Simplify right side
    156,658.62x = 22,822,704,924.79
  5. Step 5: Solve for x
    x = 22,822,704,924.79/156,658.62
  6. Step 6: Final answer
    x = 145,684.32

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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.