Home / 100,626.88-138,865.76-62,923.20

Finding the Fourth Proportional to 100,626.88, 138,865.76 and 62,923.20

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Solution

The fourth proportional to 100,626.88, 138,865.76 and 62,923.20 is: 86,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,626.88 : 138,865.76 = 62,923.20 : x
  2. Step 2: Convert to fraction form
    100,626.88/138,865.76 = 62,923.20/x
  3. Step 3: Cross multiply
    100,626.88x = 138,865.76 × 62,923.20
  4. Step 4: Simplify right side
    100,626.88x = 8,737,877,989.63
  5. Step 5: Solve for x
    x = 8,737,877,989.63/100,626.88
  6. Step 6: Final answer
    x = 86,834.43

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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.