Home / 124,659.18-172,028.79-68,070.78

Finding the Fourth Proportional to 124,659.18, 172,028.79 and 68,070.78

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Solution

The fourth proportional to 124,659.18, 172,028.79 and 68,070.78 is: 93,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,659.18 : 172,028.79 = 68,070.78 : x
  2. Step 2: Convert to fraction form
    124,659.18/172,028.79 = 68,070.78/x
  3. Step 3: Cross multiply
    124,659.18x = 172,028.79 × 68,070.78
  4. Step 4: Simplify right side
    124,659.18x = 11,710,133,917.76
  5. Step 5: Solve for x
    x = 11,710,133,917.76/124,659.18
  6. Step 6: Final answer
    x = 93,937.20

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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.