Home / 112,581.22-155,294.40-74,341.12

Finding the Fourth Proportional to 112,581.22, 155,294.40 and 74,341.12

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Solution

The fourth proportional to 112,581.22, 155,294.40 and 74,341.12 is: 102,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,581.22 : 155,294.40 = 74,341.12 : x
  2. Step 2: Convert to fraction form
    112,581.22/155,294.40 = 74,341.12/x
  3. Step 3: Cross multiply
    112,581.22x = 155,294.40 × 74,341.12
  4. Step 4: Simplify right side
    112,581.22x = 11,544,759,625.73
  5. Step 5: Solve for x
    x = 11,544,759,625.73/112,581.22
  6. Step 6: Final answer
    x = 102,546.05

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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.