Home / 126,813.40-190,213.57-42,574.21

Finding the Fourth Proportional to 126,813.40, 190,213.57 and 42,574.21

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Solution

The fourth proportional to 126,813.40, 190,213.57 and 42,574.21 is: 63,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,813.40 : 190,213.57 = 42,574.21 : x
  2. Step 2: Convert to fraction form
    126,813.40/190,213.57 = 42,574.21/x
  3. Step 3: Cross multiply
    126,813.40x = 190,213.57 × 42,574.21
  4. Step 4: Simplify right side
    126,813.40x = 8,098,192,474.03
  5. Step 5: Solve for x
    x = 8,098,192,474.03/126,813.40
  6. Step 6: Final answer
    x = 63,859.12

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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.