Home / 161,153.28-222,385.20-89,537.76

Finding the Fourth Proportional to 161,153.28, 222,385.20 and 89,537.76

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Solution

The fourth proportional to 161,153.28, 222,385.20 and 89,537.76 is: 123,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,153.28 : 222,385.20 = 89,537.76 : x
  2. Step 2: Convert to fraction form
    161,153.28/222,385.20 = 89,537.76/x
  3. Step 3: Cross multiply
    161,153.28x = 222,385.20 × 89,537.76
  4. Step 4: Simplify right side
    161,153.28x = 19,911,872,665.15
  5. Step 5: Solve for x
    x = 19,911,872,665.15/161,153.28
  6. Step 6: Final answer
    x = 123,558.59

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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.