Home / 153,711.93-212,221.18-96,429.78

Finding the Fourth Proportional to 153,711.93, 212,221.18 and 96,429.78

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Solution

The fourth proportional to 153,711.93, 212,221.18 and 96,429.78 is: 133,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,711.93 : 212,221.18 = 96,429.78 : x
  2. Step 2: Convert to fraction form
    153,711.93/212,221.18 = 96,429.78/x
  3. Step 3: Cross multiply
    153,711.93x = 212,221.18 × 96,429.78
  4. Step 4: Simplify right side
    153,711.93x = 20,464,443,067.21
  5. Step 5: Solve for x
    x = 20,464,443,067.21/153,711.93
  6. Step 6: Final answer
    x = 133,135.04

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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.