Home / 188,465.22-282,587.10-76,149

Finding the Fourth Proportional to 188,465.22, 282,587.10 and 76,149

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Solution

The fourth proportional to 188,465.22, 282,587.10 and 76,149 is: 114,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,465.22 : 282,587.10 = 76,149 : x
  2. Step 2: Convert to fraction form
    188,465.22/282,587.10 = 76,149/x
  3. Step 3: Cross multiply
    188,465.22x = 282,587.10 × 76,149
  4. Step 4: Simplify right side
    188,465.22x = 21,518,725,077.90
  5. Step 5: Solve for x
    x = 21,518,725,077.90/188,465.22
  6. Step 6: Final answer
    x = 114,178.76

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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.