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Finding the Fourth Proportional to 150,160.78, 207,268.01 and 86,540.95

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Solution

The fourth proportional to 150,160.78, 207,268.01 and 86,540.95 is: 119,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,160.78 : 207,268.01 = 86,540.95 : x
  2. Step 2: Convert to fraction form
    150,160.78/207,268.01 = 86,540.95/x
  3. Step 3: Cross multiply
    150,160.78x = 207,268.01 × 86,540.95
  4. Step 4: Simplify right side
    150,160.78x = 17,937,170,490.01
  5. Step 5: Solve for x
    x = 17,937,170,490.01/150,160.78
  6. Step 6: Final answer
    x = 119,453.10

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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.