Home / 109,239.32-163,819.33-38,142

Finding the Fourth Proportional to 109,239.32, 163,819.33 and 38,142

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Solution

The fourth proportional to 109,239.32, 163,819.33 and 38,142 is: 57,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,239.32 : 163,819.33 = 38,142 : x
  2. Step 2: Convert to fraction form
    109,239.32/163,819.33 = 38,142/x
  3. Step 3: Cross multiply
    109,239.32x = 163,819.33 × 38,142
  4. Step 4: Simplify right side
    109,239.32x = 6,248,396,789.51
  5. Step 5: Solve for x
    x = 6,248,396,789.51/109,239.32
  6. Step 6: Final answer
    x = 57,199.15

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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.