Home / 141,378.60-212,102.76-70,334.96

Finding the Fourth Proportional to 141,378.60, 212,102.76 and 70,334.96

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Solution

The fourth proportional to 141,378.60, 212,102.76 and 70,334.96 is: 105,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,378.60 : 212,102.76 = 70,334.96 : x
  2. Step 2: Convert to fraction form
    141,378.60/212,102.76 = 70,334.96/x
  3. Step 3: Cross multiply
    141,378.60x = 212,102.76 × 70,334.96
  4. Step 4: Simplify right side
    141,378.60x = 14,918,239,140.49
  5. Step 5: Solve for x
    x = 14,918,239,140.49/141,378.60
  6. Step 6: Final answer
    x = 105,519.78

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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.