Home / 207,943.89-287,036.10-123,060.75

Finding the Fourth Proportional to 207,943.89, 287,036.10 and 123,060.75

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Solution

The fourth proportional to 207,943.89, 287,036.10 and 123,060.75 is: 169,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,943.89 : 287,036.10 = 123,060.75 : x
  2. Step 2: Convert to fraction form
    207,943.89/287,036.10 = 123,060.75/x
  3. Step 3: Cross multiply
    207,943.89x = 287,036.10 × 123,060.75
  4. Step 4: Simplify right side
    207,943.89x = 35,322,877,743.08
  5. Step 5: Solve for x
    x = 35,322,877,743.08/207,943.89
  6. Step 6: Final answer
    x = 169,867.35

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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.