Home / 106,255.40-146,545.27-77,542.79

Finding the Fourth Proportional to 106,255.40, 146,545.27 and 77,542.79

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Solution

The fourth proportional to 106,255.40, 146,545.27 and 77,542.79 is: 106,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,255.40 : 146,545.27 = 77,542.79 : x
  2. Step 2: Convert to fraction form
    106,255.40/146,545.27 = 77,542.79/x
  3. Step 3: Cross multiply
    106,255.40x = 146,545.27 × 77,542.79
  4. Step 4: Simplify right side
    106,255.40x = 11,363,528,170.52
  5. Step 5: Solve for x
    x = 11,363,528,170.52/106,255.40
  6. Step 6: Final answer
    x = 106,945.42

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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.