Home / 115,685.76-173,411.28-45,537.60

Finding the Fourth Proportional to 115,685.76, 173,411.28 and 45,537.60

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Solution

The fourth proportional to 115,685.76, 173,411.28 and 45,537.60 is: 68,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,685.76 : 173,411.28 = 45,537.60 : x
  2. Step 2: Convert to fraction form
    115,685.76/173,411.28 = 45,537.60/x
  3. Step 3: Cross multiply
    115,685.76x = 173,411.28 × 45,537.60
  4. Step 4: Simplify right side
    115,685.76x = 7,896,733,504.13
  5. Step 5: Solve for x
    x = 7,896,733,504.13/115,685.76
  6. Step 6: Final answer
    x = 68,260.20

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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.