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Finding the Fourth Proportional to 169,627.80, 254,441.70 and 106,642.20

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Solution

The fourth proportional to 169,627.80, 254,441.70 and 106,642.20 is: 159,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,627.80 : 254,441.70 = 106,642.20 : x
  2. Step 2: Convert to fraction form
    169,627.80/254,441.70 = 106,642.20/x
  3. Step 3: Cross multiply
    169,627.80x = 254,441.70 × 106,642.20
  4. Step 4: Simplify right side
    169,627.80x = 27,134,222,659.74
  5. Step 5: Solve for x
    x = 27,134,222,659.74/169,627.80
  6. Step 6: Final answer
    x = 159,963.30

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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.