Home / 115,210.01-172,813.31-70,244.61

Finding the Fourth Proportional to 115,210.01, 172,813.31 and 70,244.61

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Solution

The fourth proportional to 115,210.01, 172,813.31 and 70,244.61 is: 105,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,210.01 : 172,813.31 = 70,244.61 : x
  2. Step 2: Convert to fraction form
    115,210.01/172,813.31 = 70,244.61/x
  3. Step 3: Cross multiply
    115,210.01x = 172,813.31 × 70,244.61
  4. Step 4: Simplify right side
    115,210.01x = 12,139,204,195.10
  5. Step 5: Solve for x
    x = 12,139,204,195.10/115,210.01
  6. Step 6: Final answer
    x = 105,365.88

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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.