Home / 115,308.55-172,888.29-45,194.95

Finding the Fourth Proportional to 115,308.55, 172,888.29 and 45,194.95

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Solution

The fourth proportional to 115,308.55, 172,888.29 and 45,194.95 is: 67,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,308.55 : 172,888.29 = 45,194.95 : x
  2. Step 2: Convert to fraction form
    115,308.55/172,888.29 = 45,194.95/x
  3. Step 3: Cross multiply
    115,308.55x = 172,888.29 × 45,194.95
  4. Step 4: Simplify right side
    115,308.55x = 7,813,677,622.14
  5. Step 5: Solve for x
    x = 7,813,677,622.14/115,308.55
  6. Step 6: Final answer
    x = 67,763.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.