Home / 150,155.78-207,290.04-86,481.32

Finding the Fourth Proportional to 150,155.78, 207,290.04 and 86,481.32

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Solution

The fourth proportional to 150,155.78, 207,290.04 and 86,481.32 is: 119,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,155.78 : 207,290.04 = 86,481.32 : x
  2. Step 2: Convert to fraction form
    150,155.78/207,290.04 = 86,481.32/x
  3. Step 3: Cross multiply
    150,155.78x = 207,290.04 × 86,481.32
  4. Step 4: Simplify right side
    150,155.78x = 17,926,716,282.05
  5. Step 5: Solve for x
    x = 17,926,716,282.05/150,155.78
  6. Step 6: Final answer
    x = 119,387.45

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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.