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Finding the Fourth Proportional to 150,152.21, 207,189.54 and 89,710.01

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Solution

The fourth proportional to 150,152.21, 207,189.54 and 89,710.01 is: 123,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,152.21 : 207,189.54 = 89,710.01 : x
  2. Step 2: Convert to fraction form
    150,152.21/207,189.54 = 89,710.01/x
  3. Step 3: Cross multiply
    150,152.21x = 207,189.54 × 89,710.01
  4. Step 4: Simplify right side
    150,152.21x = 18,586,974,669.35
  5. Step 5: Solve for x
    x = 18,586,974,669.35/150,152.21
  6. Step 6: Final answer
    x = 123,787.56

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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.