Home / 130,707.27-180,231.95-90,350.97

Finding the Fourth Proportional to 130,707.27, 180,231.95 and 90,350.97

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Solution

The fourth proportional to 130,707.27, 180,231.95 and 90,350.97 is: 124,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,707.27 : 180,231.95 = 90,350.97 : x
  2. Step 2: Convert to fraction form
    130,707.27/180,231.95 = 90,350.97/x
  3. Step 3: Cross multiply
    130,707.27x = 180,231.95 × 90,350.97
  4. Step 4: Simplify right side
    130,707.27x = 16,284,131,507.49
  5. Step 5: Solve for x
    x = 16,284,131,507.49/130,707.27
  6. Step 6: Final answer
    x = 124,584.74

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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.