Home / 109,191.30-163,689.51-42,615.96

Finding the Fourth Proportional to 109,191.30, 163,689.51 and 42,615.96

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Solution

The fourth proportional to 109,191.30, 163,689.51 and 42,615.96 is: 63,885.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,191.30 : 163,689.51 = 42,615.96 : x
  2. Step 2: Convert to fraction form
    109,191.30/163,689.51 = 42,615.96/x
  3. Step 3: Cross multiply
    109,191.30x = 163,689.51 × 42,615.96
  4. Step 4: Simplify right side
    109,191.30x = 6,975,785,610.58
  5. Step 5: Solve for x
    x = 6,975,785,610.58/109,191.30
  6. Step 6: Final answer
    x = 63,885.91

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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.