Home / 124,223.48-171,452.68-78,954.20

Finding the Fourth Proportional to 124,223.48, 171,452.68 and 78,954.20

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Solution

The fourth proportional to 124,223.48, 171,452.68 and 78,954.20 is: 108,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,223.48 : 171,452.68 = 78,954.20 : x
  2. Step 2: Convert to fraction form
    124,223.48/171,452.68 = 78,954.20/x
  3. Step 3: Cross multiply
    124,223.48x = 171,452.68 × 78,954.20
  4. Step 4: Simplify right side
    124,223.48x = 13,536,909,187.26
  5. Step 5: Solve for x
    x = 13,536,909,187.26/124,223.48
  6. Step 6: Final answer
    x = 108,972.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.