Home / 130,511.85-195,767.78-88,412.10

Finding the Fourth Proportional to 130,511.85, 195,767.78 and 88,412.10

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Solution

The fourth proportional to 130,511.85, 195,767.78 and 88,412.10 is: 132,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,511.85 : 195,767.78 = 88,412.10 : x
  2. Step 2: Convert to fraction form
    130,511.85/195,767.78 = 88,412.10/x
  3. Step 3: Cross multiply
    130,511.85x = 195,767.78 × 88,412.10
  4. Step 4: Simplify right side
    130,511.85x = 17,308,240,100.08
  5. Step 5: Solve for x
    x = 17,308,240,100.08/130,511.85
  6. Step 6: Final answer
    x = 132,618.15

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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.