Home / 207,789.72-286,729.11-127,240.08

Finding the Fourth Proportional to 207,789.72, 286,729.11 and 127,240.08

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Solution

The fourth proportional to 207,789.72, 286,729.11 and 127,240.08 is: 175,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,789.72 : 286,729.11 = 127,240.08 : x
  2. Step 2: Convert to fraction form
    207,789.72/286,729.11 = 127,240.08/x
  3. Step 3: Cross multiply
    207,789.72x = 286,729.11 × 127,240.08
  4. Step 4: Simplify right side
    207,789.72x = 36,483,434,894.73
  5. Step 5: Solve for x
    x = 36,483,434,894.73/207,789.72
  6. Step 6: Final answer
    x = 175,578.63

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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.