Home / 155,728.90-233,447.55-121,976.20

Finding the Fourth Proportional to 155,728.90, 233,447.55 and 121,976.20

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Solution

The fourth proportional to 155,728.90, 233,447.55 and 121,976.20 is: 182,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,728.90 : 233,447.55 = 121,976.20 : x
  2. Step 2: Convert to fraction form
    155,728.90/233,447.55 = 121,976.20/x
  3. Step 3: Cross multiply
    155,728.90x = 233,447.55 × 121,976.20
  4. Step 4: Simplify right side
    155,728.90x = 28,475,045,048.31
  5. Step 5: Solve for x
    x = 28,475,045,048.31/155,728.90
  6. Step 6: Final answer
    x = 182,850.10

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1.5x scale

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.