Home / 139,587.10-209,380.65-133,026.10

Finding the Fourth Proportional to 139,587.10, 209,380.65 and 133,026.10

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Solution

The fourth proportional to 139,587.10, 209,380.65 and 133,026.10 is: 199,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,587.10 : 209,380.65 = 133,026.10 : x
  2. Step 2: Convert to fraction form
    139,587.10/209,380.65 = 133,026.10/x
  3. Step 3: Cross multiply
    139,587.10x = 209,380.65 × 133,026.10
  4. Step 4: Simplify right side
    139,587.10x = 27,853,091,284.97
  5. Step 5: Solve for x
    x = 27,853,091,284.97/139,587.10
  6. Step 6: Final answer
    x = 199,539.15

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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.