Home / 171,984.65-257,859.20-87,581.43

Finding the Fourth Proportional to 171,984.65, 257,859.20 and 87,581.43

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Solution

The fourth proportional to 171,984.65, 257,859.20 and 87,581.43 is: 131,312.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,984.65 : 257,859.20 = 87,581.43 : x
  2. Step 2: Convert to fraction form
    171,984.65/257,859.20 = 87,581.43/x
  3. Step 3: Cross multiply
    171,984.65x = 257,859.20 × 87,581.43
  4. Step 4: Simplify right side
    171,984.65x = 22,583,677,693.61
  5. Step 5: Solve for x
    x = 22,583,677,693.61/171,984.65
  6. Step 6: Final answer
    x = 131,312.17

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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.