Home / 189,393.12-261,358.56-103,348.08

Finding the Fourth Proportional to 189,393.12, 261,358.56 and 103,348.08

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Solution

The fourth proportional to 189,393.12, 261,358.56 and 103,348.08 is: 142,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,393.12 : 261,358.56 = 103,348.08 : x
  2. Step 2: Convert to fraction form
    189,393.12/261,358.56 = 103,348.08/x
  3. Step 3: Cross multiply
    189,393.12x = 261,358.56 × 103,348.08
  4. Step 4: Simplify right side
    189,393.12x = 27,010,905,367.56
  5. Step 5: Solve for x
    x = 27,010,905,367.56/189,393.12
  6. Step 6: Final answer
    x = 142,618.20

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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.