Home / 126,347.99-189,521.21-31,577.69

Finding the Fourth Proportional to 126,347.99, 189,521.21 and 31,577.69

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Solution

The fourth proportional to 126,347.99, 189,521.21 and 31,577.69 is: 47,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,347.99 : 189,521.21 = 31,577.69 : x
  2. Step 2: Convert to fraction form
    126,347.99/189,521.21 = 31,577.69/x
  3. Step 3: Cross multiply
    126,347.99x = 189,521.21 × 31,577.69
  4. Step 4: Simplify right side
    126,347.99x = 5,984,642,570.55
  5. Step 5: Solve for x
    x = 5,984,642,570.55/126,347.99
  6. Step 6: Final answer
    x = 47,366.35

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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.