Home / 126,570.18-189,855.44-51,690.30

Finding the Fourth Proportional to 126,570.18, 189,855.44 and 51,690.30

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Solution

The fourth proportional to 126,570.18, 189,855.44 and 51,690.30 is: 77,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,570.18 : 189,855.44 = 51,690.30 : x
  2. Step 2: Convert to fraction form
    126,570.18/189,855.44 = 51,690.30/x
  3. Step 3: Cross multiply
    126,570.18x = 189,855.44 × 51,690.30
  4. Step 4: Simplify right side
    126,570.18x = 9,813,684,650.23
  5. Step 5: Solve for x
    x = 9,813,684,650.23/126,570.18
  6. Step 6: Final answer
    x = 77,535.52

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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.