Home / 130,186.80-195,360.24-60,071.28

Finding the Fourth Proportional to 130,186.80, 195,360.24 and 60,071.28

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Solution

The fourth proportional to 130,186.80, 195,360.24 and 60,071.28 is: 90,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,186.80 : 195,360.24 = 60,071.28 : x
  2. Step 2: Convert to fraction form
    130,186.80/195,360.24 = 60,071.28/x
  3. Step 3: Cross multiply
    130,186.80x = 195,360.24 × 60,071.28
  4. Step 4: Simplify right side
    130,186.80x = 11,735,539,677.91
  5. Step 5: Solve for x
    x = 11,735,539,677.91/130,186.80
  6. Step 6: Final answer
    x = 90,143.85

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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.