Home / 130,423.20-195,634.80-31,927.20

Finding the Fourth Proportional to 130,423.20, 195,634.80 and 31,927.20

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Solution

The fourth proportional to 130,423.20, 195,634.80 and 31,927.20 is: 47,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,423.20 : 195,634.80 = 31,927.20 : x
  2. Step 2: Convert to fraction form
    130,423.20/195,634.80 = 31,927.20/x
  3. Step 3: Cross multiply
    130,423.20x = 195,634.80 × 31,927.20
  4. Step 4: Simplify right side
    130,423.20x = 6,246,071,386.56
  5. Step 5: Solve for x
    x = 6,246,071,386.56/130,423.20
  6. Step 6: Final answer
    x = 47,890.80

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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.