Home / 102,225.15-153,272.07-67,123.80

Finding the Fourth Proportional to 102,225.15, 153,272.07 and 67,123.80

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Solution

The fourth proportional to 102,225.15, 153,272.07 and 67,123.80 is: 100,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,225.15 : 153,272.07 = 67,123.80 : x
  2. Step 2: Convert to fraction form
    102,225.15/153,272.07 = 67,123.80/x
  3. Step 3: Cross multiply
    102,225.15x = 153,272.07 × 67,123.80
  4. Step 4: Simplify right side
    102,225.15x = 10,288,203,772.27
  5. Step 5: Solve for x
    x = 10,288,203,772.27/102,225.15
  6. Step 6: Final answer
    x = 100,642.59

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1.5x scale

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.