Home / 125,159.04-172,713.06-68,569.20

Finding the Fourth Proportional to 125,159.04, 172,713.06 and 68,569.20

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Solution

The fourth proportional to 125,159.04, 172,713.06 and 68,569.20 is: 94,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,159.04 : 172,713.06 = 68,569.20 : x
  2. Step 2: Convert to fraction form
    125,159.04/172,713.06 = 68,569.20/x
  3. Step 3: Cross multiply
    125,159.04x = 172,713.06 × 68,569.20
  4. Step 4: Simplify right side
    125,159.04x = 11,842,796,353.75
  5. Step 5: Solve for x
    x = 11,842,796,353.75/125,159.04
  6. Step 6: Final answer
    x = 94,621.98

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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.