Home / 150,388.15-207,521.85-86,713.65

Finding the Fourth Proportional to 150,388.15, 207,521.85 and 86,713.65

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Solution

The fourth proportional to 150,388.15, 207,521.85 and 86,713.65 is: 119,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,388.15 : 207,521.85 = 86,713.65 : x
  2. Step 2: Convert to fraction form
    150,388.15/207,521.85 = 86,713.65/x
  3. Step 3: Cross multiply
    150,388.15x = 207,521.85 × 86,713.65
  4. Step 4: Simplify right side
    150,388.15x = 17,994,975,597.08
  5. Step 5: Solve for x
    x = 17,994,975,597.08/150,388.15
  6. Step 6: Final answer
    x = 119,656.87

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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.