Home / 150,144.32-207,166.28-89,705.90

Finding the Fourth Proportional to 150,144.32, 207,166.28 and 89,705.90

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Solution

The fourth proportional to 150,144.32, 207,166.28 and 89,705.90 is: 123,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,144.32 : 207,166.28 = 89,705.90 : x
  2. Step 2: Convert to fraction form
    150,144.32/207,166.28 = 89,705.90/x
  3. Step 3: Cross multiply
    150,144.32x = 207,166.28 × 89,705.90
  4. Step 4: Simplify right side
    150,144.32x = 18,584,037,597.05
  5. Step 5: Solve for x
    x = 18,584,037,597.05/150,144.32
  6. Step 6: Final answer
    x = 123,774.50

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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.