Home / 125,007.12-172,513.95-68,418.48

Finding the Fourth Proportional to 125,007.12, 172,513.95 and 68,418.48

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Solution

The fourth proportional to 125,007.12, 172,513.95 and 68,418.48 is: 94,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,007.12 : 172,513.95 = 68,418.48 : x
  2. Step 2: Convert to fraction form
    125,007.12/172,513.95 = 68,418.48/x
  3. Step 3: Cross multiply
    125,007.12x = 172,513.95 × 68,418.48
  4. Step 4: Simplify right side
    125,007.12x = 11,803,142,237.80
  5. Step 5: Solve for x
    x = 11,803,142,237.80/125,007.12
  6. Step 6: Final answer
    x = 94,419.76

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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.