Home / 125,148.02-172,656.61-92,520.78

Finding the Fourth Proportional to 125,148.02, 172,656.61 and 92,520.78

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Solution

The fourth proportional to 125,148.02, 172,656.61 and 92,520.78 is: 127,643.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,148.02 : 172,656.61 = 92,520.78 : x
  2. Step 2: Convert to fraction form
    125,148.02/172,656.61 = 92,520.78/x
  3. Step 3: Cross multiply
    125,148.02x = 172,656.61 × 92,520.78
  4. Step 4: Simplify right side
    125,148.02x = 15,974,324,842.21
  5. Step 5: Solve for x
    x = 15,974,324,842.21/125,148.02
  6. Step 6: Final answer
    x = 127,643.45

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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.