Home / 113,788.80-157,025.28-63,486.72

Finding the Fourth Proportional to 113,788.80, 157,025.28 and 63,486.72

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Solution

The fourth proportional to 113,788.80, 157,025.28 and 63,486.72 is: 87,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,788.80 : 157,025.28 = 63,486.72 : x
  2. Step 2: Convert to fraction form
    113,788.80/157,025.28 = 63,486.72/x
  3. Step 3: Cross multiply
    113,788.80x = 157,025.28 × 63,486.72
  4. Step 4: Simplify right side
    113,788.80x = 9,969,019,984.28
  5. Step 5: Solve for x
    x = 9,969,019,984.28/113,788.80
  6. Step 6: Final answer
    x = 87,609.85

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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.