Home / 207,422.12-286,237.80-115,540.76

Finding the Fourth Proportional to 207,422.12, 286,237.80 and 115,540.76

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Solution

The fourth proportional to 207,422.12, 286,237.80 and 115,540.76 is: 159,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,422.12 : 286,237.80 = 115,540.76 : x
  2. Step 2: Convert to fraction form
    207,422.12/286,237.80 = 115,540.76/x
  3. Step 3: Cross multiply
    207,422.12x = 286,237.80 × 115,540.76
  4. Step 4: Simplify right side
    207,422.12x = 33,072,132,952.73
  5. Step 5: Solve for x
    x = 33,072,132,952.73/207,422.12
  6. Step 6: Final answer
    x = 159,443.62

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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.