Home / 257,716.65-386,482.35-89,191.26

Finding the Fourth Proportional to 257,716.65, 386,482.35 and 89,191.26

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Solution

The fourth proportional to 257,716.65, 386,482.35 and 89,191.26 is: 133,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,716.65 : 386,482.35 = 89,191.26 : x
  2. Step 2: Convert to fraction form
    257,716.65/386,482.35 = 89,191.26/x
  3. Step 3: Cross multiply
    257,716.65x = 386,482.35 × 89,191.26
  4. Step 4: Simplify right side
    257,716.65x = 34,470,847,764.26
  5. Step 5: Solve for x
    x = 34,470,847,764.26/257,716.65
  6. Step 6: Final answer
    x = 133,754.83

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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.