Home / 115,573.47-173,415.19-80,089.40

Finding the Fourth Proportional to 115,573.47, 173,415.19 and 80,089.40

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Solution

The fourth proportional to 115,573.47, 173,415.19 and 80,089.40 is: 120,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,573.47 : 173,415.19 = 80,089.40 : x
  2. Step 2: Convert to fraction form
    115,573.47/173,415.19 = 80,089.40/x
  3. Step 3: Cross multiply
    115,573.47x = 173,415.19 × 80,089.40
  4. Step 4: Simplify right side
    115,573.47x = 13,888,718,517.99
  5. Step 5: Solve for x
    x = 13,888,718,517.99/115,573.47
  6. Step 6: Final answer
    x = 120,172.20

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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.