Home / 160,742.28-221,881.74-109,718.48

Finding the Fourth Proportional to 160,742.28, 221,881.74 and 109,718.48

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Solution

The fourth proportional to 160,742.28, 221,881.74 and 109,718.48 is: 151,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,742.28 : 221,881.74 = 109,718.48 : x
  2. Step 2: Convert to fraction form
    160,742.28/221,881.74 = 109,718.48/x
  3. Step 3: Cross multiply
    160,742.28x = 221,881.74 × 109,718.48
  4. Step 4: Simplify right side
    160,742.28x = 24,344,527,252.56
  5. Step 5: Solve for x
    x = 24,344,527,252.56/160,742.28
  6. Step 6: Final answer
    x = 151,450.68

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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.