Home / 140,903.12-194,445.96-77,241.20

Finding the Fourth Proportional to 140,903.12, 194,445.96 and 77,241.20

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Solution

The fourth proportional to 140,903.12, 194,445.96 and 77,241.20 is: 106,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,903.12 : 194,445.96 = 77,241.20 : x
  2. Step 2: Convert to fraction form
    140,903.12/194,445.96 = 77,241.20/x
  3. Step 3: Cross multiply
    140,903.12x = 194,445.96 × 77,241.20
  4. Step 4: Simplify right side
    140,903.12x = 15,019,239,285.55
  5. Step 5: Solve for x
    x = 15,019,239,285.55/140,903.12
  6. Step 6: Final answer
    x = 106,592.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.