Home / 171,983.21-257,711.78-72,088.94

Finding the Fourth Proportional to 171,983.21, 257,711.78 and 72,088.94

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Solution

The fourth proportional to 171,983.21, 257,711.78 and 72,088.94 is: 108,023.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,983.21 : 257,711.78 = 72,088.94 : x
  2. Step 2: Convert to fraction form
    171,983.21/257,711.78 = 72,088.94/x
  3. Step 3: Cross multiply
    171,983.21x = 257,711.78 × 72,088.94
  4. Step 4: Simplify right side
    171,983.21x = 18,578,167,396.71
  5. Step 5: Solve for x
    x = 18,578,167,396.71/171,983.21
  6. Step 6: Final answer
    x = 108,023.15

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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.