Home / 130,013.50-195,020.28-31,517.50

Finding the Fourth Proportional to 130,013.50, 195,020.28 and 31,517.50

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Solution

The fourth proportional to 130,013.50, 195,020.28 and 31,517.50 is: 47,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,013.50 : 195,020.28 = 31,517.50 : x
  2. Step 2: Convert to fraction form
    130,013.50/195,020.28 = 31,517.50/x
  3. Step 3: Cross multiply
    130,013.50x = 195,020.28 × 31,517.50
  4. Step 4: Simplify right side
    130,013.50x = 6,146,551,674.90
  5. Step 5: Solve for x
    x = 6,146,551,674.90/130,013.50
  6. Step 6: Final answer
    x = 47,276.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.