Home / 121,026.21-181,184.45-84,877.38

Finding the Fourth Proportional to 121,026.21, 181,184.45 and 84,877.38

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Solution

The fourth proportional to 121,026.21, 181,184.45 and 84,877.38 is: 127,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,026.21 : 181,184.45 = 84,877.38 : x
  2. Step 2: Convert to fraction form
    121,026.21/181,184.45 = 84,877.38/x
  3. Step 3: Cross multiply
    121,026.21x = 181,184.45 × 84,877.38
  4. Step 4: Simplify right side
    121,026.21x = 15,378,460,988.35
  5. Step 5: Solve for x
    x = 15,378,460,988.35/121,026.21
  6. Step 6: Final answer
    x = 127,067.19

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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.