Home / 145,477.72-200,757.94-81,814.15

Finding the Fourth Proportional to 145,477.72, 200,757.94 and 81,814.15

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Solution

The fourth proportional to 145,477.72, 200,757.94 and 81,814.15 is: 112,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,477.72 : 200,757.94 = 81,814.15 : x
  2. Step 2: Convert to fraction form
    145,477.72/200,757.94 = 81,814.15/x
  3. Step 3: Cross multiply
    145,477.72x = 200,757.94 × 81,814.15
  4. Step 4: Simplify right side
    145,477.72x = 16,424,840,723.47
  5. Step 5: Solve for x
    x = 16,424,840,723.47/145,477.72
  6. Step 6: Final answer
    x = 112,902.79

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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.