Home / 124,719.40-187,079.10-72,101.80

Finding the Fourth Proportional to 124,719.40, 187,079.10 and 72,101.80

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Solution

The fourth proportional to 124,719.40, 187,079.10 and 72,101.80 is: 108,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,719.40 : 187,079.10 = 72,101.80 : x
  2. Step 2: Convert to fraction form
    124,719.40/187,079.10 = 72,101.80/x
  3. Step 3: Cross multiply
    124,719.40x = 187,079.10 × 72,101.80
  4. Step 4: Simplify right side
    124,719.40x = 13,488,739,852.38
  5. Step 5: Solve for x
    x = 13,488,739,852.38/124,719.40
  6. Step 6: Final answer
    x = 108,152.70

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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.