Home / 155,452.90-232,851.30-138,831.70

Finding the Fourth Proportional to 155,452.90, 232,851.30 and 138,831.70

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Solution

The fourth proportional to 155,452.90, 232,851.30 and 138,831.70 is: 207,954.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,452.90 : 232,851.30 = 138,831.70 : x
  2. Step 2: Convert to fraction form
    155,452.90/232,851.30 = 138,831.70/x
  3. Step 3: Cross multiply
    155,452.90x = 232,851.30 × 138,831.70
  4. Step 4: Simplify right side
    155,452.90x = 32,327,141,826.21
  5. Step 5: Solve for x
    x = 32,327,141,826.21/155,452.90
  6. Step 6: Final answer
    x = 207,954.58

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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.