Home / 221,151.06-305,176.95-125,644.50

Finding the Fourth Proportional to 221,151.06, 305,176.95 and 125,644.50

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Solution

The fourth proportional to 221,151.06, 305,176.95 and 125,644.50 is: 173,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,151.06 : 305,176.95 = 125,644.50 : x
  2. Step 2: Convert to fraction form
    221,151.06/305,176.95 = 125,644.50/x
  3. Step 3: Cross multiply
    221,151.06x = 305,176.95 × 125,644.50
  4. Step 4: Simplify right side
    221,151.06x = 38,343,805,294.28
  5. Step 5: Solve for x
    x = 38,343,805,294.28/221,151.06
  6. Step 6: Final answer
    x = 173,382.87

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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.