Home / 104,918.40-157,766.40-87,811.20

Finding the Fourth Proportional to 104,918.40, 157,766.40 and 87,811.20

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Solution

The fourth proportional to 104,918.40, 157,766.40 and 87,811.20 is: 132,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,918.40 : 157,766.40 = 87,811.20 : x
  2. Step 2: Convert to fraction form
    104,918.40/157,766.40 = 87,811.20/x
  3. Step 3: Cross multiply
    104,918.40x = 157,766.40 × 87,811.20
  4. Step 4: Simplify right side
    104,918.40x = 13,853,656,903.68
  5. Step 5: Solve for x
    x = 13,853,656,903.68/104,918.40
  6. Step 6: Final answer
    x = 132,042.21

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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.