Home / 147,391.38-203,381.08-83,716.88

Finding the Fourth Proportional to 147,391.38, 203,381.08 and 83,716.88

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Solution

The fourth proportional to 147,391.38, 203,381.08 and 83,716.88 is: 115,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,391.38 : 203,381.08 = 83,716.88 : x
  2. Step 2: Convert to fraction form
    147,391.38/203,381.08 = 83,716.88/x
  3. Step 3: Cross multiply
    147,391.38x = 203,381.08 × 83,716.88
  4. Step 4: Simplify right side
    147,391.38x = 17,026,428,242.43
  5. Step 5: Solve for x
    x = 17,026,428,242.43/147,391.38
  6. Step 6: Final answer
    x = 115,518.48

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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.