Home / 202,995.91-280,115.07-137,451.22

Finding the Fourth Proportional to 202,995.91, 280,115.07 and 137,451.22

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Solution

The fourth proportional to 202,995.91, 280,115.07 and 137,451.22 is: 189,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,995.91 : 280,115.07 = 137,451.22 : x
  2. Step 2: Convert to fraction form
    202,995.91/280,115.07 = 137,451.22/x
  3. Step 3: Cross multiply
    202,995.91x = 280,115.07 × 137,451.22
  4. Step 4: Simplify right side
    202,995.91x = 38,502,158,111.89
  5. Step 5: Solve for x
    x = 38,502,158,111.89/202,995.91
  6. Step 6: Final answer
    x = 189,669.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.