Home / 135,280.80-186,761.92-101,276.96

Finding the Fourth Proportional to 135,280.80, 186,761.92 and 101,276.96

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Solution

The fourth proportional to 135,280.80, 186,761.92 and 101,276.96 is: 139,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,280.80 : 186,761.92 = 101,276.96 : x
  2. Step 2: Convert to fraction form
    135,280.80/186,761.92 = 101,276.96/x
  3. Step 3: Cross multiply
    135,280.80x = 186,761.92 × 101,276.96
  4. Step 4: Simplify right side
    135,280.80x = 18,914,679,501.36
  5. Step 5: Solve for x
    x = 18,914,679,501.36/135,280.80
  6. Step 6: Final answer
    x = 139,817.92

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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.