Home / 112,337.03-154,987.75-74,115.56

Finding the Fourth Proportional to 112,337.03, 154,987.75 and 74,115.56

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Solution

The fourth proportional to 112,337.03, 154,987.75 and 74,115.56 is: 102,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,337.03 : 154,987.75 = 74,115.56 : x
  2. Step 2: Convert to fraction form
    112,337.03/154,987.75 = 74,115.56/x
  3. Step 3: Cross multiply
    112,337.03x = 154,987.75 × 74,115.56
  4. Step 4: Simplify right side
    112,337.03x = 11,487,003,701.15
  5. Step 5: Solve for x
    x = 11,487,003,701.15/112,337.03
  6. Step 6: Final answer
    x = 102,254.83

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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.