Home / 121,837.86-182,297.52-71,945.10

Finding the Fourth Proportional to 121,837.86, 182,297.52 and 71,945.10

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Solution

The fourth proportional to 121,837.86, 182,297.52 and 71,945.10 is: 107,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,837.86 : 182,297.52 = 71,945.10 : x
  2. Step 2: Convert to fraction form
    121,837.86/182,297.52 = 71,945.10/x
  3. Step 3: Cross multiply
    121,837.86x = 182,297.52 × 71,945.10
  4. Step 4: Simplify right side
    121,837.86x = 13,115,413,306.15
  5. Step 5: Solve for x
    x = 13,115,413,306.15/121,837.86
  6. Step 6: Final answer
    x = 107,646.45

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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.