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Finding the Fourth Proportional to 160,561.57, 221,574.99 and 87,964.79

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Solution

The fourth proportional to 160,561.57, 221,574.99 and 87,964.79 is: 121,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,561.57 : 221,574.99 = 87,964.79 : x
  2. Step 2: Convert to fraction form
    160,561.57/221,574.99 = 87,964.79/x
  3. Step 3: Cross multiply
    160,561.57x = 221,574.99 × 87,964.79
  4. Step 4: Simplify right side
    160,561.57x = 19,490,796,686.60
  5. Step 5: Solve for x
    x = 19,490,796,686.60/160,561.57
  6. Step 6: Final answer
    x = 121,391.42

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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.