Home / 130,601.65-195,902.51-86,218.02

Finding the Fourth Proportional to 130,601.65, 195,902.51 and 86,218.02

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Solution

The fourth proportional to 130,601.65, 195,902.51 and 86,218.02 is: 129,327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,601.65 : 195,902.51 = 86,218.02 : x
  2. Step 2: Convert to fraction form
    130,601.65/195,902.51 = 86,218.02/x
  3. Step 3: Cross multiply
    130,601.65x = 195,902.51 × 86,218.02
  4. Step 4: Simplify right side
    130,601.65x = 16,890,326,740.78
  5. Step 5: Solve for x
    x = 16,890,326,740.78/130,601.65
  6. Step 6: Final answer
    x = 129,327.06

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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.