Home / 207,895.28-286,940-131,365.79

Finding the Fourth Proportional to 207,895.28, 286,940 and 131,365.79

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Solution

The fourth proportional to 207,895.28, 286,940 and 131,365.79 is: 181,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,895.28 : 286,940 = 131,365.79 : x
  2. Step 2: Convert to fraction form
    207,895.28/286,940 = 131,365.79/x
  3. Step 3: Cross multiply
    207,895.28x = 286,940 × 131,365.79
  4. Step 4: Simplify right side
    207,895.28x = 37,694,099,782.60
  5. Step 5: Solve for x
    x = 37,694,099,782.60/207,895.28
  6. Step 6: Final answer
    x = 181,312.92

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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.