Home / 157,411.12-217,307.64-106,691.92

Finding the Fourth Proportional to 157,411.12, 217,307.64 and 106,691.92

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Solution

The fourth proportional to 157,411.12, 217,307.64 and 106,691.92 is: 147,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,411.12 : 217,307.64 = 106,691.92 : x
  2. Step 2: Convert to fraction form
    157,411.12/217,307.64 = 106,691.92/x
  3. Step 3: Cross multiply
    157,411.12x = 217,307.64 × 106,691.92
  4. Step 4: Simplify right side
    157,411.12x = 23,184,969,342.27
  5. Step 5: Solve for x
    x = 23,184,969,342.27/157,411.12
  6. Step 6: Final answer
    x = 147,289.27

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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.