Home / 96,939.40-145,332.30-53,163.40

Finding the Fourth Proportional to 96,939.40, 145,332.30 and 53,163.40

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Solution

The fourth proportional to 96,939.40, 145,332.30 and 53,163.40 is: 79,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,939.40 : 145,332.30 = 53,163.40 : x
  2. Step 2: Convert to fraction form
    96,939.40/145,332.30 = 53,163.40/x
  3. Step 3: Cross multiply
    96,939.40x = 145,332.30 × 53,163.40
  4. Step 4: Simplify right side
    96,939.40x = 7,726,359,197.82
  5. Step 5: Solve for x
    x = 7,726,359,197.82/96,939.40
  6. Step 6: Final answer
    x = 79,702.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.