Home / 108,979.80-163,437.30-42,381.60

Finding the Fourth Proportional to 108,979.80, 163,437.30 and 42,381.60

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Solution

The fourth proportional to 108,979.80, 163,437.30 and 42,381.60 is: 63,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.80 : 163,437.30 = 42,381.60 : x
  2. Step 2: Convert to fraction form
    108,979.80/163,437.30 = 42,381.60/x
  3. Step 3: Cross multiply
    108,979.80x = 163,437.30 × 42,381.60
  4. Step 4: Simplify right side
    108,979.80x = 6,926,734,273.68
  5. Step 5: Solve for x
    x = 6,926,734,273.68/108,979.80
  6. Step 6: Final answer
    x = 63,559.80

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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.