Home / 115,541.20-172,908.60-68,827.60

Finding the Fourth Proportional to 115,541.20, 172,908.60 and 68,827.60

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Solution

The fourth proportional to 115,541.20, 172,908.60 and 68,827.60 is: 103,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,541.20 : 172,908.60 = 68,827.60 : x
  2. Step 2: Convert to fraction form
    115,541.20/172,908.60 = 68,827.60/x
  3. Step 3: Cross multiply
    115,541.20x = 172,908.60 × 68,827.60
  4. Step 4: Simplify right side
    115,541.20x = 11,900,883,957.36
  5. Step 5: Solve for x
    x = 11,900,883,957.36/115,541.20
  6. Step 6: Final answer
    x = 103,001.21

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1.5x scale

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.