Home / 108,760.20-163,091.70-42,178.20

Finding the Fourth Proportional to 108,760.20, 163,091.70 and 42,178.20

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Solution

The fourth proportional to 108,760.20, 163,091.70 and 42,178.20 is: 63,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,760.20 : 163,091.70 = 42,178.20 : x
  2. Step 2: Convert to fraction form
    108,760.20/163,091.70 = 42,178.20/x
  3. Step 3: Cross multiply
    108,760.20x = 163,091.70 × 42,178.20
  4. Step 4: Simplify right side
    108,760.20x = 6,878,914,340.94
  5. Step 5: Solve for x
    x = 6,878,914,340.94/108,760.20
  6. Step 6: Final answer
    x = 63,248.45

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1.5x scale

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.