Home / 125,269.22-172,871.16-68,680.64

Finding the Fourth Proportional to 125,269.22, 172,871.16 and 68,680.64

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Solution

The fourth proportional to 125,269.22, 172,871.16 and 68,680.64 is: 94,779.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.22 : 172,871.16 = 68,680.64 : x
  2. Step 2: Convert to fraction form
    125,269.22/172,871.16 = 68,680.64/x
  3. Step 3: Cross multiply
    125,269.22x = 172,871.16 × 68,680.64
  4. Step 4: Simplify right side
    125,269.22x = 11,872,901,906.34
  5. Step 5: Solve for x
    x = 11,872,901,906.34/125,269.22
  6. Step 6: Final answer
    x = 94,779.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.