Home / 120,864.88-181,603.50-76,512.52

Finding the Fourth Proportional to 120,864.88, 181,603.50 and 76,512.52

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Solution

The fourth proportional to 120,864.88, 181,603.50 and 76,512.52 is: 114,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,864.88 : 181,603.50 = 76,512.52 : x
  2. Step 2: Convert to fraction form
    120,864.88/181,603.50 = 76,512.52/x
  3. Step 3: Cross multiply
    120,864.88x = 181,603.50 × 76,512.52
  4. Step 4: Simplify right side
    120,864.88x = 13,894,941,425.82
  5. Step 5: Solve for x
    x = 13,894,941,425.82/120,864.88
  6. Step 6: Final answer
    x = 114,962.60

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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.