Home / 142,766.60-214,149.90-42,942.20

Finding the Fourth Proportional to 142,766.60, 214,149.90 and 42,942.20

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Solution

The fourth proportional to 142,766.60, 214,149.90 and 42,942.20 is: 64,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,766.60 : 214,149.90 = 42,942.20 : x
  2. Step 2: Convert to fraction form
    142,766.60/214,149.90 = 42,942.20/x
  3. Step 3: Cross multiply
    142,766.60x = 214,149.90 × 42,942.20
  4. Step 4: Simplify right side
    142,766.60x = 9,196,067,835.78
  5. Step 5: Solve for x
    x = 9,196,067,835.78/142,766.60
  6. Step 6: Final answer
    x = 64,413.30

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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.