Home / 130,931.46-180,754.45-88,135.95

Finding the Fourth Proportional to 130,931.46, 180,754.45 and 88,135.95

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Solution

The fourth proportional to 130,931.46, 180,754.45 and 88,135.95 is: 121,674.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,931.46 : 180,754.45 = 88,135.95 : x
  2. Step 2: Convert to fraction form
    130,931.46/180,754.45 = 88,135.95/x
  3. Step 3: Cross multiply
    130,931.46x = 180,754.45 × 88,135.95
  4. Step 4: Simplify right side
    130,931.46x = 15,930,965,167.48
  5. Step 5: Solve for x
    x = 15,930,965,167.48/130,931.46
  6. Step 6: Final answer
    x = 121,674.08

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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.