Home / 120,253.71-180,366.75-31,514.21

Finding the Fourth Proportional to 120,253.71, 180,366.75 and 31,514.21

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Solution

The fourth proportional to 120,253.71, 180,366.75 and 31,514.21 is: 47,267.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,253.71 : 180,366.75 = 31,514.21 : x
  2. Step 2: Convert to fraction form
    120,253.71/180,366.75 = 31,514.21/x
  3. Step 3: Cross multiply
    120,253.71x = 180,366.75 × 31,514.21
  4. Step 4: Simplify right side
    120,253.71x = 5,684,116,425.62
  5. Step 5: Solve for x
    x = 5,684,116,425.62/120,253.71
  6. Step 6: Final answer
    x = 47,267.70

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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.