Home / 131,012.40-196,518.60-42,268.80

Finding the Fourth Proportional to 131,012.40, 196,518.60 and 42,268.80

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Solution

The fourth proportional to 131,012.40, 196,518.60 and 42,268.80 is: 63,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,012.40 : 196,518.60 = 42,268.80 : x
  2. Step 2: Convert to fraction form
    131,012.40/196,518.60 = 42,268.80/x
  3. Step 3: Cross multiply
    131,012.40x = 196,518.60 × 42,268.80
  4. Step 4: Simplify right side
    131,012.40x = 8,306,605,399.68
  5. Step 5: Solve for x
    x = 8,306,605,399.68/131,012.40
  6. Step 6: Final answer
    x = 63,403.20

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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.