Home / 150,955.78-208,319.15-82,972.75

Finding the Fourth Proportional to 150,955.78, 208,319.15 and 82,972.75

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Solution

The fourth proportional to 150,955.78, 208,319.15 and 82,972.75 is: 114,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,955.78 : 208,319.15 = 82,972.75 : x
  2. Step 2: Convert to fraction form
    150,955.78/208,319.15 = 82,972.75/x
  3. Step 3: Cross multiply
    150,955.78x = 208,319.15 × 82,972.75
  4. Step 4: Simplify right side
    150,955.78x = 17,284,812,753.16
  5. Step 5: Solve for x
    x = 17,284,812,753.16/150,955.78
  6. Step 6: Final answer
    x = 114,502.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.