Home / 128,008.28-191,995.56-38,049.07

Finding the Fourth Proportional to 128,008.28, 191,995.56 and 38,049.07

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Solution

The fourth proportional to 128,008.28, 191,995.56 and 38,049.07 is: 57,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,008.28 : 191,995.56 = 38,049.07 : x
  2. Step 2: Convert to fraction form
    128,008.28/191,995.56 = 38,049.07/x
  3. Step 3: Cross multiply
    128,008.28x = 191,995.56 × 38,049.07
  4. Step 4: Simplify right side
    128,008.28x = 7,305,252,982.12
  5. Step 5: Solve for x
    x = 7,305,252,982.12/128,008.28
  6. Step 6: Final answer
    x = 57,068.60

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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.