Home / 130,451.26-195,458.18-77,875.78

Finding the Fourth Proportional to 130,451.26, 195,458.18 and 77,875.78

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Solution

The fourth proportional to 130,451.26, 195,458.18 and 77,875.78 is: 116,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,451.26 : 195,458.18 = 77,875.78 : x
  2. Step 2: Convert to fraction form
    130,451.26/195,458.18 = 77,875.78/x
  3. Step 3: Cross multiply
    130,451.26x = 195,458.18 × 77,875.78
  4. Step 4: Simplify right side
    130,451.26x = 15,221,458,224.88
  5. Step 5: Solve for x
    x = 15,221,458,224.88/130,451.26
  6. Step 6: Final answer
    x = 116,683.11

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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.