Home / 136,942.20-205,413.30-38,446.20

Finding the Fourth Proportional to 136,942.20, 205,413.30 and 38,446.20

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Solution

The fourth proportional to 136,942.20, 205,413.30 and 38,446.20 is: 57,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,942.20 : 205,413.30 = 38,446.20 : x
  2. Step 2: Convert to fraction form
    136,942.20/205,413.30 = 38,446.20/x
  3. Step 3: Cross multiply
    136,942.20x = 205,413.30 × 38,446.20
  4. Step 4: Simplify right side
    136,942.20x = 7,897,360,814.46
  5. Step 5: Solve for x
    x = 7,897,360,814.46/136,942.20
  6. Step 6: Final answer
    x = 57,669.30

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1.5x scale

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.