Home / 260,126.16-390,301.83-91,766.85

Finding the Fourth Proportional to 260,126.16, 390,301.83 and 91,766.85

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Solution

The fourth proportional to 260,126.16, 390,301.83 and 91,766.85 is: 137,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,126.16 : 390,301.83 = 91,766.85 : x
  2. Step 2: Convert to fraction form
    260,126.16/390,301.83 = 91,766.85/x
  3. Step 3: Cross multiply
    260,126.16x = 390,301.83 × 91,766.85
  4. Step 4: Simplify right side
    260,126.16x = 35,816,769,488.34
  5. Step 5: Solve for x
    x = 35,816,769,488.34/260,126.16
  6. Step 6: Final answer
    x = 137,689.99

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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.