Home / 107,847.20-161,770.80-70,522.40

Finding the Fourth Proportional to 107,847.20, 161,770.80 and 70,522.40

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Solution

The fourth proportional to 107,847.20, 161,770.80 and 70,522.40 is: 105,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,847.20 : 161,770.80 = 70,522.40 : x
  2. Step 2: Convert to fraction form
    107,847.20/161,770.80 = 70,522.40/x
  3. Step 3: Cross multiply
    107,847.20x = 161,770.80 × 70,522.40
  4. Step 4: Simplify right side
    107,847.20x = 11,408,465,065.92
  5. Step 5: Solve for x
    x = 11,408,465,065.92/107,847.20
  6. Step 6: Final answer
    x = 105,783.60

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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.