Home / 132,619.04-198,948-39,112.64

Finding the Fourth Proportional to 132,619.04, 198,948 and 39,112.64

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Solution

The fourth proportional to 132,619.04, 198,948 and 39,112.64 is: 58,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,619.04 : 198,948 = 39,112.64 : x
  2. Step 2: Convert to fraction form
    132,619.04/198,948 = 39,112.64/x
  3. Step 3: Cross multiply
    132,619.04x = 198,948 × 39,112.64
  4. Step 4: Simplify right side
    132,619.04x = 7,781,381,502.72
  5. Step 5: Solve for x
    x = 7,781,381,502.72/132,619.04
  6. Step 6: Final answer
    x = 58,674.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.