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Finding the Fourth Proportional to 150,600.60, 207,820.80 and 86,934.60

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Solution

The fourth proportional to 150,600.60, 207,820.80 and 86,934.60 is: 119,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,600.60 : 207,820.80 = 86,934.60 : x
  2. Step 2: Convert to fraction form
    150,600.60/207,820.80 = 86,934.60/x
  3. Step 3: Cross multiply
    150,600.60x = 207,820.80 × 86,934.60
  4. Step 4: Simplify right side
    150,600.60x = 18,066,818,119.68
  5. Step 5: Solve for x
    x = 18,066,818,119.68/150,600.60
  6. Step 6: Final answer
    x = 119,965.11

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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.