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Finding the Fourth Proportional to 159,574.56, 220,202.88 and 87,950.64

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Solution

The fourth proportional to 159,574.56, 220,202.88 and 87,950.64 is: 121,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,574.56 : 220,202.88 = 87,950.64 : x
  2. Step 2: Convert to fraction form
    159,574.56/220,202.88 = 87,950.64/x
  3. Step 3: Cross multiply
    159,574.56x = 220,202.88 × 87,950.64
  4. Step 4: Simplify right side
    159,574.56x = 19,366,984,225.84
  5. Step 5: Solve for x
    x = 19,366,984,225.84/159,574.56
  6. Step 6: Final answer
    x = 121,366.36

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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.