Home / 168,877.10-253,385.40-74,058.20

Finding the Fourth Proportional to 168,877.10, 253,385.40 and 74,058.20

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Solution

The fourth proportional to 168,877.10, 253,385.40 and 74,058.20 is: 111,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,877.10 : 253,385.40 = 74,058.20 : x
  2. Step 2: Convert to fraction form
    168,877.10/253,385.40 = 74,058.20/x
  3. Step 3: Cross multiply
    168,877.10x = 253,385.40 × 74,058.20
  4. Step 4: Simplify right side
    168,877.10x = 18,765,266,630.28
  5. Step 5: Solve for x
    x = 18,765,266,630.28/168,877.10
  6. Step 6: Final answer
    x = 111,117.89

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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.