Home / 130,930.21-180,752.73-88,134.70

Finding the Fourth Proportional to 130,930.21, 180,752.73 and 88,134.70

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Solution

The fourth proportional to 130,930.21, 180,752.73 and 88,134.70 is: 121,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,930.21 : 180,752.73 = 88,134.70 : x
  2. Step 2: Convert to fraction form
    130,930.21/180,752.73 = 88,134.70/x
  3. Step 3: Cross multiply
    130,930.21x = 180,752.73 × 88,134.70
  4. Step 4: Simplify right side
    130,930.21x = 15,930,587,632.73
  5. Step 5: Solve for x
    x = 15,930,587,632.73/130,930.21
  6. Step 6: Final answer
    x = 121,672.36

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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.