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Finding the Fourth Proportional to 160,240.87, 221,123.41 and 87,629.32

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Solution

The fourth proportional to 160,240.87, 221,123.41 and 87,629.32 is: 120,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,240.87 : 221,123.41 = 87,629.32 : x
  2. Step 2: Convert to fraction form
    160,240.87/221,123.41 = 87,629.32/x
  3. Step 3: Cross multiply
    160,240.87x = 221,123.41 × 87,629.32
  4. Step 4: Simplify right side
    160,240.87x = 19,376,894,054.38
  5. Step 5: Solve for x
    x = 19,376,894,054.38/160,240.87
  6. Step 6: Final answer
    x = 120,923.55

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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.