Home / 140,724.40-194,199.77-77,062.21

Finding the Fourth Proportional to 140,724.40, 194,199.77 and 77,062.21

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Solution

The fourth proportional to 140,724.40, 194,199.77 and 77,062.21 is: 106,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,724.40 : 194,199.77 = 77,062.21 : x
  2. Step 2: Convert to fraction form
    140,724.40/194,199.77 = 77,062.21/x
  3. Step 3: Cross multiply
    140,724.40x = 194,199.77 × 77,062.21
  4. Step 4: Simplify right side
    140,724.40x = 14,965,463,457.69
  5. Step 5: Solve for x
    x = 14,965,463,457.69/140,724.40
  6. Step 6: Final answer
    x = 106,345.90

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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.