Home / 130,708.52-180,233.68-90,352.22

Finding the Fourth Proportional to 130,708.52, 180,233.68 and 90,352.22

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Solution

The fourth proportional to 130,708.52, 180,233.68 and 90,352.22 is: 124,586.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,708.52 : 180,233.68 = 90,352.22 : x
  2. Step 2: Convert to fraction form
    130,708.52/180,233.68 = 90,352.22/x
  3. Step 3: Cross multiply
    130,708.52x = 180,233.68 × 90,352.22
  4. Step 4: Simplify right side
    130,708.52x = 16,284,512,655.01
  5. Step 5: Solve for x
    x = 16,284,512,655.01/130,708.52
  6. Step 6: Final answer
    x = 124,586.47

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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.