Home / 132,639.22-198,699.63-70,223.86

Finding the Fourth Proportional to 132,639.22, 198,699.63 and 70,223.86

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Solution

The fourth proportional to 132,639.22, 198,699.63 and 70,223.86 is: 105,198.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,639.22 : 198,699.63 = 70,223.86 : x
  2. Step 2: Convert to fraction form
    132,639.22/198,699.63 = 70,223.86/x
  3. Step 3: Cross multiply
    132,639.22x = 198,699.63 × 70,223.86
  4. Step 4: Simplify right side
    132,639.22x = 13,953,454,999.17
  5. Step 5: Solve for x
    x = 13,953,454,999.17/132,639.22
  6. Step 6: Final answer
    x = 105,198.56

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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.