Home / 126,442.72-189,692.33-47,557.63

Finding the Fourth Proportional to 126,442.72, 189,692.33 and 47,557.63

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Solution

The fourth proportional to 126,442.72, 189,692.33 and 47,557.63 is: 71,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,442.72 : 189,692.33 = 47,557.63 : x
  2. Step 2: Convert to fraction form
    126,442.72/189,692.33 = 47,557.63/x
  3. Step 3: Cross multiply
    126,442.72x = 189,692.33 × 47,557.63
  4. Step 4: Simplify right side
    126,442.72x = 9,021,317,643.98
  5. Step 5: Solve for x
    x = 9,021,317,643.98/126,442.72
  6. Step 6: Final answer
    x = 71,347.07

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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.