Home / 131,799.08-181,895.70-75,218.92

Finding the Fourth Proportional to 131,799.08, 181,895.70 and 75,218.92

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Solution

The fourth proportional to 131,799.08, 181,895.70 and 75,218.92 is: 103,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,799.08 : 181,895.70 = 75,218.92 : x
  2. Step 2: Convert to fraction form
    131,799.08/181,895.70 = 75,218.92/x
  3. Step 3: Cross multiply
    131,799.08x = 181,895.70 × 75,218.92
  4. Step 4: Simplify right side
    131,799.08x = 13,681,998,106.64
  5. Step 5: Solve for x
    x = 13,681,998,106.64/131,799.08
  6. Step 6: Final answer
    x = 103,809.51

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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.