Home / 156,948.57-216,590.57-85,330.13

Finding the Fourth Proportional to 156,948.57, 216,590.57 and 85,330.13

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Solution

The fourth proportional to 156,948.57, 216,590.57 and 85,330.13 is: 117,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,948.57 : 216,590.57 = 85,330.13 : x
  2. Step 2: Convert to fraction form
    156,948.57/216,590.57 = 85,330.13/x
  3. Step 3: Cross multiply
    156,948.57x = 216,590.57 × 85,330.13
  4. Step 4: Simplify right side
    156,948.57x = 18,481,702,252.74
  5. Step 5: Solve for x
    x = 18,481,702,252.74/156,948.57
  6. Step 6: Final answer
    x = 117,756.42

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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.