Home / 113,813.26-157,078.11-63,515.50

Finding the Fourth Proportional to 113,813.26, 157,078.11 and 63,515.50

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Solution

The fourth proportional to 113,813.26, 157,078.11 and 63,515.50 is: 87,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,813.26 : 157,078.11 = 63,515.50 : x
  2. Step 2: Convert to fraction form
    113,813.26/157,078.11 = 63,515.50/x
  3. Step 3: Cross multiply
    113,813.26x = 157,078.11 × 63,515.50
  4. Step 4: Simplify right side
    113,813.26x = 9,976,894,695.71
  5. Step 5: Solve for x
    x = 9,976,894,695.71/113,813.26
  6. Step 6: Final answer
    x = 87,660.21

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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.