Home / 130,480.18-195,719.22-77,539.06

Finding the Fourth Proportional to 130,480.18, 195,719.22 and 77,539.06

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Solution

The fourth proportional to 130,480.18, 195,719.22 and 77,539.06 is: 116,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,480.18 : 195,719.22 = 77,539.06 : x
  2. Step 2: Convert to fraction form
    130,480.18/195,719.22 = 77,539.06/x
  3. Step 3: Cross multiply
    130,480.18x = 195,719.22 × 77,539.06
  4. Step 4: Simplify right side
    130,480.18x = 15,175,884,342.73
  5. Step 5: Solve for x
    x = 15,175,884,342.73/130,480.18
  6. Step 6: Final answer
    x = 116,307.97

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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.