Home / 113,883.80-157,156.38-63,581.72

Finding the Fourth Proportional to 113,883.80, 157,156.38 and 63,581.72

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Solution

The fourth proportional to 113,883.80, 157,156.38 and 63,581.72 is: 87,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,883.80 : 157,156.38 = 63,581.72 : x
  2. Step 2: Convert to fraction form
    113,883.80/157,156.38 = 63,581.72/x
  3. Step 3: Cross multiply
    113,883.80x = 157,156.38 × 63,581.72
  4. Step 4: Simplify right side
    113,883.80x = 9,992,272,949.37
  5. Step 5: Solve for x
    x = 9,992,272,949.37/113,883.80
  6. Step 6: Final answer
    x = 87,740.95

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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.