Home / 156,742.39-216,302.55-85,122.92

Finding the Fourth Proportional to 156,742.39, 216,302.55 and 85,122.92

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Solution

The fourth proportional to 156,742.39, 216,302.55 and 85,122.92 is: 117,468.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.39 : 216,302.55 = 85,122.92 : x
  2. Step 2: Convert to fraction form
    156,742.39/216,302.55 = 85,122.92/x
  3. Step 3: Cross multiply
    156,742.39x = 216,302.55 × 85,122.92
  4. Step 4: Simplify right side
    156,742.39x = 18,412,304,659.45
  5. Step 5: Solve for x
    x = 18,412,304,659.45/156,742.39
  6. Step 6: Final answer
    x = 117,468.57

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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.