Home / 129,739.04-179,040.08-70,123.04

Finding the Fourth Proportional to 129,739.04, 179,040.08 and 70,123.04

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Solution

The fourth proportional to 129,739.04, 179,040.08 and 70,123.04 is: 96,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,739.04 : 179,040.08 = 70,123.04 : x
  2. Step 2: Convert to fraction form
    129,739.04/179,040.08 = 70,123.04/x
  3. Step 3: Cross multiply
    129,739.04x = 179,040.08 × 70,123.04
  4. Step 4: Simplify right side
    129,739.04x = 12,554,834,691.44
  5. Step 5: Solve for x
    x = 12,554,834,691.44/129,739.04
  6. Step 6: Final answer
    x = 96,769.91

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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.