Home / 131,002.60-196,503.90-121,379.80

Finding the Fourth Proportional to 131,002.60, 196,503.90 and 121,379.80

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Solution

The fourth proportional to 131,002.60, 196,503.90 and 121,379.80 is: 182,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,002.60 : 196,503.90 = 121,379.80 : x
  2. Step 2: Convert to fraction form
    131,002.60/196,503.90 = 121,379.80/x
  3. Step 3: Cross multiply
    131,002.60x = 196,503.90 × 121,379.80
  4. Step 4: Simplify right side
    131,002.60x = 23,851,604,081.22
  5. Step 5: Solve for x
    x = 23,851,604,081.22/131,002.60
  6. Step 6: Final answer
    x = 182,069.70

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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.