Home / 150,148.32-207,171.81-89,709.90

Finding the Fourth Proportional to 150,148.32, 207,171.81 and 89,709.90

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Solution

The fourth proportional to 150,148.32, 207,171.81 and 89,709.90 is: 123,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,148.32 : 207,171.81 = 89,709.90 : x
  2. Step 2: Convert to fraction form
    150,148.32/207,171.81 = 89,709.90/x
  3. Step 3: Cross multiply
    150,148.32x = 207,171.81 × 89,709.90
  4. Step 4: Simplify right side
    150,148.32x = 18,585,362,357.92
  5. Step 5: Solve for x
    x = 18,585,362,357.92/150,148.32
  6. Step 6: Final answer
    x = 123,780.02

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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.