Home / 128,246.28-192,435.03-58,116.48

Finding the Fourth Proportional to 128,246.28, 192,435.03 and 58,116.48

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Solution

The fourth proportional to 128,246.28, 192,435.03 and 58,116.48 is: 87,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,246.28 : 192,435.03 = 58,116.48 : x
  2. Step 2: Convert to fraction form
    128,246.28/192,435.03 = 58,116.48/x
  3. Step 3: Cross multiply
    128,246.28x = 192,435.03 × 58,116.48
  4. Step 4: Simplify right side
    128,246.28x = 11,183,646,572.29
  5. Step 5: Solve for x
    x = 11,183,646,572.29/128,246.28
  6. Step 6: Final answer
    x = 87,204.45

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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.