Home / 150,655.04-207,905.28-87,003.68

Finding the Fourth Proportional to 150,655.04, 207,905.28 and 87,003.68

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Solution

The fourth proportional to 150,655.04, 207,905.28 and 87,003.68 is: 120,065.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,655.04 : 207,905.28 = 87,003.68 : x
  2. Step 2: Convert to fraction form
    150,655.04/207,905.28 = 87,003.68/x
  3. Step 3: Cross multiply
    150,655.04x = 207,905.28 × 87,003.68
  4. Step 4: Simplify right side
    150,655.04x = 18,088,524,451.43
  5. Step 5: Solve for x
    x = 18,088,524,451.43/150,655.04
  6. Step 6: Final answer
    x = 120,065.84

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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.