Home / 170,063.20-255,099-81,326.08

Finding the Fourth Proportional to 170,063.20, 255,099 and 81,326.08

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Solution

The fourth proportional to 170,063.20, 255,099 and 81,326.08 is: 121,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,063.20 : 255,099 = 81,326.08 : x
  2. Step 2: Convert to fraction form
    170,063.20/255,099 = 81,326.08/x
  3. Step 3: Cross multiply
    170,063.20x = 255,099 × 81,326.08
  4. Step 4: Simplify right side
    170,063.20x = 20,746,201,681.92
  5. Step 5: Solve for x
    x = 20,746,201,681.92/170,063.20
  6. Step 6: Final answer
    x = 121,991.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.