Home / 132,486.18-198,639.30-67,410.66

Finding the Fourth Proportional to 132,486.18, 198,639.30 and 67,410.66

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Solution

The fourth proportional to 132,486.18, 198,639.30 and 67,410.66 is: 101,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,486.18 : 198,639.30 = 67,410.66 : x
  2. Step 2: Convert to fraction form
    132,486.18/198,639.30 = 67,410.66/x
  3. Step 3: Cross multiply
    132,486.18x = 198,639.30 × 67,410.66
  4. Step 4: Simplify right side
    132,486.18x = 13,390,406,314.94
  5. Step 5: Solve for x
    x = 13,390,406,314.94/132,486.18
  6. Step 6: Final answer
    x = 101,070.21

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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.