Home / 126,424.07-189,643.40-47,538.98

Finding the Fourth Proportional to 126,424.07, 189,643.40 and 47,538.98

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Solution

The fourth proportional to 126,424.07, 189,643.40 and 47,538.98 is: 71,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,424.07 : 189,643.40 = 47,538.98 : x
  2. Step 2: Convert to fraction form
    126,424.07/189,643.40 = 47,538.98/x
  3. Step 3: Cross multiply
    126,424.07x = 189,643.40 × 47,538.98
  4. Step 4: Simplify right side
    126,424.07x = 9,015,452,613.82
  5. Step 5: Solve for x
    x = 9,015,452,613.82/126,424.07
  6. Step 6: Final answer
    x = 71,311.21

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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.