Home / 126,187.72-189,254.84-47,307.76

Finding the Fourth Proportional to 126,187.72, 189,254.84 and 47,307.76

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Solution

The fourth proportional to 126,187.72, 189,254.84 and 47,307.76 is: 70,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,187.72 : 189,254.84 = 47,307.76 : x
  2. Step 2: Convert to fraction form
    126,187.72/189,254.84 = 47,307.76/x
  3. Step 3: Cross multiply
    126,187.72x = 189,254.84 × 47,307.76
  4. Step 4: Simplify right side
    126,187.72x = 8,953,222,549.56
  5. Step 5: Solve for x
    x = 8,953,222,549.56/126,187.72
  6. Step 6: Final answer
    x = 70,951.62

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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.