Home / 231,995.90-320,139.18-136,484.15

Finding the Fourth Proportional to 231,995.90, 320,139.18 and 136,484.15

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Solution

The fourth proportional to 231,995.90, 320,139.18 and 136,484.15 is: 188,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,995.90 : 320,139.18 = 136,484.15 : x
  2. Step 2: Convert to fraction form
    231,995.90/320,139.18 = 136,484.15/x
  3. Step 3: Cross multiply
    231,995.90x = 320,139.18 × 136,484.15
  4. Step 4: Simplify right side
    231,995.90x = 43,693,922,263.30
  5. Step 5: Solve for x
    x = 43,693,922,263.30/231,995.90
  6. Step 6: Final answer
    x = 188,339.20

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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.