Home / 130,306.78-195,462.06-51,420.25

Finding the Fourth Proportional to 130,306.78, 195,462.06 and 51,420.25

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Solution

The fourth proportional to 130,306.78, 195,462.06 and 51,420.25 is: 77,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,306.78 : 195,462.06 = 51,420.25 : x
  2. Step 2: Convert to fraction form
    130,306.78/195,462.06 = 51,420.25/x
  3. Step 3: Cross multiply
    130,306.78x = 195,462.06 × 51,420.25
  4. Step 4: Simplify right side
    130,306.78x = 10,050,707,990.72
  5. Step 5: Solve for x
    x = 10,050,707,990.72/130,306.78
  6. Step 6: Final answer
    x = 77,131.12

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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.