Home / 121,642.20-182,463.30-88,205.40

Finding the Fourth Proportional to 121,642.20, 182,463.30 and 88,205.40

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Solution

The fourth proportional to 121,642.20, 182,463.30 and 88,205.40 is: 132,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,642.20 : 182,463.30 = 88,205.40 : x
  2. Step 2: Convert to fraction form
    121,642.20/182,463.30 = 88,205.40/x
  3. Step 3: Cross multiply
    121,642.20x = 182,463.30 × 88,205.40
  4. Step 4: Simplify right side
    121,642.20x = 16,094,248,361.82
  5. Step 5: Solve for x
    x = 16,094,248,361.82/121,642.20
  6. Step 6: Final answer
    x = 132,308.10

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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.