Home / 130,945.41-180,728.19-77,227.29

Finding the Fourth Proportional to 130,945.41, 180,728.19 and 77,227.29

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Solution

The fourth proportional to 130,945.41, 180,728.19 and 77,227.29 is: 106,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.41 : 180,728.19 = 77,227.29 : x
  2. Step 2: Convert to fraction form
    130,945.41/180,728.19 = 77,227.29/x
  3. Step 3: Cross multiply
    130,945.41x = 180,728.19 × 77,227.29
  4. Step 4: Simplify right side
    130,945.41x = 13,957,148,340.31
  5. Step 5: Solve for x
    x = 13,957,148,340.31/130,945.41
  6. Step 6: Final answer
    x = 106,587.53

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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.