Home / 128,532-192,826.08-38,570.88

Finding the Fourth Proportional to 128,532, 192,826.08 and 38,570.88

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Solution

The fourth proportional to 128,532, 192,826.08 and 38,570.88 is: 57,864.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,532 : 192,826.08 = 38,570.88 : x
  2. Step 2: Convert to fraction form
    128,532/192,826.08 = 38,570.88/x
  3. Step 3: Cross multiply
    128,532x = 192,826.08 × 38,570.88
  4. Step 4: Simplify right side
    128,532x = 7,437,471,592.55
  5. Step 5: Solve for x
    x = 7,437,471,592.55/128,532
  6. Step 6: Final answer
    x = 57,864.75

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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.