Home / 160,728.28-221,804.66-89,106.46

Finding the Fourth Proportional to 160,728.28, 221,804.66 and 89,106.46

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Solution

The fourth proportional to 160,728.28, 221,804.66 and 89,106.46 is: 122,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,728.28 : 221,804.66 = 89,106.46 : x
  2. Step 2: Convert to fraction form
    160,728.28/221,804.66 = 89,106.46/x
  3. Step 3: Cross multiply
    160,728.28x = 221,804.66 × 89,106.46
  4. Step 4: Simplify right side
    160,728.28x = 19,764,228,064.10
  5. Step 5: Solve for x
    x = 19,764,228,064.10/160,728.28
  6. Step 6: Final answer
    x = 122,966.71

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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.