Home / 109,209.64-163,853.88-38,142.74

Finding the Fourth Proportional to 109,209.64, 163,853.88 and 38,142.74

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Solution

The fourth proportional to 109,209.64, 163,853.88 and 38,142.74 is: 57,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,209.64 : 163,853.88 = 38,142.74 : x
  2. Step 2: Convert to fraction form
    109,209.64/163,853.88 = 38,142.74/x
  3. Step 3: Cross multiply
    109,209.64x = 163,853.88 × 38,142.74
  4. Step 4: Simplify right side
    109,209.64x = 6,249,835,942.83
  5. Step 5: Solve for x
    x = 6,249,835,942.83/109,209.64
  6. Step 6: Final answer
    x = 57,227.88

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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.