Home / 130,761.29-180,444.67-79,765.92

Finding the Fourth Proportional to 130,761.29, 180,444.67 and 79,765.92

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Solution

The fourth proportional to 130,761.29, 180,444.67 and 79,765.92 is: 110,073.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,761.29 : 180,444.67 = 79,765.92 : x
  2. Step 2: Convert to fraction form
    130,761.29/180,444.67 = 79,765.92/x
  3. Step 3: Cross multiply
    130,761.29x = 180,444.67 × 79,765.92
  4. Step 4: Simplify right side
    130,761.29x = 14,393,334,912.23
  5. Step 5: Solve for x
    x = 14,393,334,912.23/130,761.29
  6. Step 6: Final answer
    x = 110,073.36

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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.