Home / 108,888.80-163,255.98-42,272.78

Finding the Fourth Proportional to 108,888.80, 163,255.98 and 42,272.78

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Solution

The fourth proportional to 108,888.80, 163,255.98 and 42,272.78 is: 63,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,888.80 : 163,255.98 = 42,272.78 : x
  2. Step 2: Convert to fraction form
    108,888.80/163,255.98 = 42,272.78/x
  3. Step 3: Cross multiply
    108,888.80x = 163,255.98 × 42,272.78
  4. Step 4: Simplify right side
    108,888.80x = 6,901,284,126.22
  5. Step 5: Solve for x
    x = 6,901,284,126.22/108,888.80
  6. Step 6: Final answer
    x = 63,379.19

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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.