Home / 156,723.71-216,279.16-85,104.93

Finding the Fourth Proportional to 156,723.71, 216,279.16 and 85,104.93

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Solution

The fourth proportional to 156,723.71, 216,279.16 and 85,104.93 is: 117,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,723.71 : 216,279.16 = 85,104.93 : x
  2. Step 2: Convert to fraction form
    156,723.71/216,279.16 = 85,104.93/x
  3. Step 3: Cross multiply
    156,723.71x = 216,279.16 × 85,104.93
  4. Step 4: Simplify right side
    156,723.71x = 18,406,421,265.34
  5. Step 5: Solve for x
    x = 18,406,421,265.34/156,723.71
  6. Step 6: Final answer
    x = 117,445.03

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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.