Home / 138,226.15-190,752.42-77,797.67

Finding the Fourth Proportional to 138,226.15, 190,752.42 and 77,797.67

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Solution

The fourth proportional to 138,226.15, 190,752.42 and 77,797.67 is: 107,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,226.15 : 190,752.42 = 77,797.67 : x
  2. Step 2: Convert to fraction form
    138,226.15/190,752.42 = 77,797.67/x
  3. Step 3: Cross multiply
    138,226.15x = 190,752.42 × 77,797.67
  4. Step 4: Simplify right side
    138,226.15x = 14,840,092,723.23
  5. Step 5: Solve for x
    x = 14,840,092,723.23/138,226.15
  6. Step 6: Final answer
    x = 107,360.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.