Home / 170,068.20-255,106.52-81,331.08

Finding the Fourth Proportional to 170,068.20, 255,106.52 and 81,331.08

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Solution

The fourth proportional to 170,068.20, 255,106.52 and 81,331.08 is: 121,998.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,068.20 : 255,106.52 = 81,331.08 : x
  2. Step 2: Convert to fraction form
    170,068.20/255,106.52 = 81,331.08/x
  3. Step 3: Cross multiply
    170,068.20x = 255,106.52 × 81,331.08
  4. Step 4: Simplify right side
    170,068.20x = 20,748,088,786.64
  5. Step 5: Solve for x
    x = 20,748,088,786.64/170,068.20
  6. Step 6: Final answer
    x = 121,998.64

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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.