Home / 161,336.72-222,644.84-89,715.20

Finding the Fourth Proportional to 161,336.72, 222,644.84 and 89,715.20

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Solution

The fourth proportional to 161,336.72, 222,644.84 and 89,715.20 is: 123,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,336.72 : 222,644.84 = 89,715.20 : x
  2. Step 2: Convert to fraction form
    161,336.72/222,644.84 = 89,715.20/x
  3. Step 3: Cross multiply
    161,336.72x = 222,644.84 × 89,715.20
  4. Step 4: Simplify right side
    161,336.72x = 19,974,624,787.77
  5. Step 5: Solve for x
    x = 19,974,624,787.77/161,336.72
  6. Step 6: Final answer
    x = 123,807.06

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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.