Home / 128,250.96-192,272.67-53,427.31

Finding the Fourth Proportional to 128,250.96, 192,272.67 and 53,427.31

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Solution

The fourth proportional to 128,250.96, 192,272.67 and 53,427.31 is: 80,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,250.96 : 192,272.67 = 53,427.31 : x
  2. Step 2: Convert to fraction form
    128,250.96/192,272.67 = 53,427.31/x
  3. Step 3: Cross multiply
    128,250.96x = 192,272.67 × 53,427.31
  4. Step 4: Simplify right side
    128,250.96x = 10,272,612,145.47
  5. Step 5: Solve for x
    x = 10,272,612,145.47/128,250.96
  6. Step 6: Final answer
    x = 80,097.74

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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.