Home / 100,801.08-151,230.78-30,678.57

Finding the Fourth Proportional to 100,801.08, 151,230.78 and 30,678.57

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Solution

The fourth proportional to 100,801.08, 151,230.78 and 30,678.57 is: 46,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,801.08 : 151,230.78 = 30,678.57 : x
  2. Step 2: Convert to fraction form
    100,801.08/151,230.78 = 30,678.57/x
  3. Step 3: Cross multiply
    100,801.08x = 151,230.78 × 30,678.57
  4. Step 4: Simplify right side
    100,801.08x = 4,639,544,070.38
  5. Step 5: Solve for x
    x = 4,639,544,070.38/100,801.08
  6. Step 6: Final answer
    x = 46,026.73

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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.