Home / 108,897.75-163,193.40-86,612.22

Finding the Fourth Proportional to 108,897.75, 163,193.40 and 86,612.22

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Solution

The fourth proportional to 108,897.75, 163,193.40 and 86,612.22 is: 129,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,897.75 : 163,193.40 = 86,612.22 : x
  2. Step 2: Convert to fraction form
    108,897.75/163,193.40 = 86,612.22/x
  3. Step 3: Cross multiply
    108,897.75x = 163,193.40 × 86,612.22
  4. Step 4: Simplify right side
    108,897.75x = 14,134,542,663.35
  5. Step 5: Solve for x
    x = 14,134,542,663.35/108,897.75
  6. Step 6: Final answer
    x = 129,796.46

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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.