Home / 126,237.20-189,428.70-47,359.40

Finding the Fourth Proportional to 126,237.20, 189,428.70 and 47,359.40

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Solution

The fourth proportional to 126,237.20, 189,428.70 and 47,359.40 is: 71,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,237.20 : 189,428.70 = 47,359.40 : x
  2. Step 2: Convert to fraction form
    126,237.20/189,428.70 = 47,359.40/x
  3. Step 3: Cross multiply
    126,237.20x = 189,428.70 × 47,359.40
  4. Step 4: Simplify right side
    126,237.20x = 8,971,229,574.78
  5. Step 5: Solve for x
    x = 8,971,229,574.78/126,237.20
  6. Step 6: Final answer
    x = 71,066.45

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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.