Home / 126,064.40-189,096.60-42,958.40

Finding the Fourth Proportional to 126,064.40, 189,096.60 and 42,958.40

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Solution

The fourth proportional to 126,064.40, 189,096.60 and 42,958.40 is: 64,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,064.40 : 189,096.60 = 42,958.40 : x
  2. Step 2: Convert to fraction form
    126,064.40/189,096.60 = 42,958.40/x
  3. Step 3: Cross multiply
    126,064.40x = 189,096.60 × 42,958.40
  4. Step 4: Simplify right side
    126,064.40x = 8,123,287,381.44
  5. Step 5: Solve for x
    x = 8,123,287,381.44/126,064.40
  6. Step 6: Final answer
    x = 64,437.60

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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.