Home / 128,008.82-192,038.01-49,116.92

Finding the Fourth Proportional to 128,008.82, 192,038.01 and 49,116.92

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Solution

The fourth proportional to 128,008.82, 192,038.01 and 49,116.92 is: 73,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,008.82 : 192,038.01 = 49,116.92 : x
  2. Step 2: Convert to fraction form
    128,008.82/192,038.01 = 49,116.92/x
  3. Step 3: Cross multiply
    128,008.82x = 192,038.01 × 49,116.92
  4. Step 4: Simplify right side
    128,008.82x = 9,432,314,429.75
  5. Step 5: Solve for x
    x = 9,432,314,429.75/128,008.82
  6. Step 6: Final answer
    x = 73,684.88

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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.