Home / 159,032.46-219,465.27-87,419.82

Finding the Fourth Proportional to 159,032.46, 219,465.27 and 87,419.82

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Solution

The fourth proportional to 159,032.46, 219,465.27 and 87,419.82 is: 120,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,032.46 : 219,465.27 = 87,419.82 : x
  2. Step 2: Convert to fraction form
    159,032.46/219,465.27 = 87,419.82/x
  3. Step 3: Cross multiply
    159,032.46x = 219,465.27 × 87,419.82
  4. Step 4: Simplify right side
    159,032.46x = 19,185,614,399.65
  5. Step 5: Solve for x
    x = 19,185,614,399.65/159,032.46
  6. Step 6: Final answer
    x = 120,639.61

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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.