Home / 159,389.28-219,883.36-102,818.88

Finding the Fourth Proportional to 159,389.28, 219,883.36 and 102,818.88

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Solution

The fourth proportional to 159,389.28, 219,883.36 and 102,818.88 is: 141,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,389.28 : 219,883.36 = 102,818.88 : x
  2. Step 2: Convert to fraction form
    159,389.28/219,883.36 = 102,818.88/x
  3. Step 3: Cross multiply
    159,389.28x = 219,883.36 × 102,818.88
  4. Step 4: Simplify right side
    159,389.28x = 22,608,160,805.84
  5. Step 5: Solve for x
    x = 22,608,160,805.84/159,389.28
  6. Step 6: Final answer
    x = 141,842.42

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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.