Home / 187,231.50-280,871.55-68,904.27

Finding the Fourth Proportional to 187,231.50, 280,871.55 and 68,904.27

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Solution

The fourth proportional to 187,231.50, 280,871.55 and 68,904.27 is: 103,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,231.50 : 280,871.55 = 68,904.27 : x
  2. Step 2: Convert to fraction form
    187,231.50/280,871.55 = 68,904.27/x
  3. Step 3: Cross multiply
    187,231.50x = 280,871.55 × 68,904.27
  4. Step 4: Simplify right side
    187,231.50x = 19,353,249,116.52
  5. Step 5: Solve for x
    x = 19,353,249,116.52/187,231.50
  6. Step 6: Final answer
    x = 103,365.35

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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.