Home / 157,255.20-235,328.76-128,833.92

Finding the Fourth Proportional to 157,255.20, 235,328.76 and 128,833.92

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Solution

The fourth proportional to 157,255.20, 235,328.76 and 128,833.92 is: 192,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,255.20 : 235,328.76 = 128,833.92 : x
  2. Step 2: Convert to fraction form
    157,255.20/235,328.76 = 128,833.92/x
  3. Step 3: Cross multiply
    157,255.20x = 235,328.76 × 128,833.92
  4. Step 4: Simplify right side
    157,255.20x = 30,318,326,639.54
  5. Step 5: Solve for x
    x = 30,318,326,639.54/157,255.20
  6. Step 6: Final answer
    x = 192,796.97

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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.