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Finding the Fourth Proportional to 126,256.80, 189,298.80 and 59,728.80

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Solution

The fourth proportional to 126,256.80, 189,298.80 and 59,728.80 is: 89,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,256.80 : 189,298.80 = 59,728.80 : x
  2. Step 2: Convert to fraction form
    126,256.80/189,298.80 = 59,728.80/x
  3. Step 3: Cross multiply
    126,256.80x = 189,298.80 × 59,728.80
  4. Step 4: Simplify right side
    126,256.80x = 11,306,590,165.44
  5. Step 5: Solve for x
    x = 11,306,590,165.44/126,256.80
  6. Step 6: Final answer
    x = 89,552.33

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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.