Home / 125,011.12-172,519.48-68,422.48

Finding the Fourth Proportional to 125,011.12, 172,519.48 and 68,422.48

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Solution

The fourth proportional to 125,011.12, 172,519.48 and 68,422.48 is: 94,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,011.12 : 172,519.48 = 68,422.48 : x
  2. Step 2: Convert to fraction form
    125,011.12/172,519.48 = 68,422.48/x
  3. Step 3: Cross multiply
    125,011.12x = 172,519.48 × 68,422.48
  4. Step 4: Simplify right side
    125,011.12x = 11,804,210,669.91
  5. Step 5: Solve for x
    x = 11,804,210,669.91/125,011.12
  6. Step 6: Final answer
    x = 94,425.29

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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.