Home / 207,610.09-286,501.92-112,116.78

Finding the Fourth Proportional to 207,610.09, 286,501.92 and 112,116.78

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Solution

The fourth proportional to 207,610.09, 286,501.92 and 112,116.78 is: 154,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,610.09 : 286,501.92 = 112,116.78 : x
  2. Step 2: Convert to fraction form
    207,610.09/286,501.92 = 112,116.78/x
  3. Step 3: Cross multiply
    207,610.09x = 286,501.92 × 112,116.78
  4. Step 4: Simplify right side
    207,610.09x = 32,121,672,734.22
  5. Step 5: Solve for x
    x = 32,121,672,734.22/207,610.09
  6. Step 6: Final answer
    x = 154,721.15

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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.