Home / 124,782.07-172,211.13-68,201.95

Finding the Fourth Proportional to 124,782.07, 172,211.13 and 68,201.95

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Solution

The fourth proportional to 124,782.07, 172,211.13 and 68,201.95 is: 94,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782.07 : 172,211.13 = 68,201.95 : x
  2. Step 2: Convert to fraction form
    124,782.07/172,211.13 = 68,201.95/x
  3. Step 3: Cross multiply
    124,782.07x = 172,211.13 × 68,201.95
  4. Step 4: Simplify right side
    124,782.07x = 11,745,134,877.70
  5. Step 5: Solve for x
    x = 11,745,134,877.70/124,782.07
  6. Step 6: Final answer
    x = 94,125.18

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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.