Home / 221,152.43-305,188.76-125,659.13

Finding the Fourth Proportional to 221,152.43, 305,188.76 and 125,659.13

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Solution

The fourth proportional to 221,152.43, 305,188.76 and 125,659.13 is: 173,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,152.43 : 305,188.76 = 125,659.13 : x
  2. Step 2: Convert to fraction form
    221,152.43/305,188.76 = 125,659.13/x
  3. Step 3: Cross multiply
    221,152.43x = 305,188.76 × 125,659.13
  4. Step 4: Simplify right side
    221,152.43x = 38,349,754,572.27
  5. Step 5: Solve for x
    x = 38,349,754,572.27/221,152.43
  6. Step 6: Final answer
    x = 173,408.70

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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.