Home / 268,737.18-403,128.09-81,750.30

Finding the Fourth Proportional to 268,737.18, 403,128.09 and 81,750.30

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Solution

The fourth proportional to 268,737.18, 403,128.09 and 81,750.30 is: 122,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,737.18 : 403,128.09 = 81,750.30 : x
  2. Step 2: Convert to fraction form
    268,737.18/403,128.09 = 81,750.30/x
  3. Step 3: Cross multiply
    268,737.18x = 403,128.09 × 81,750.30
  4. Step 4: Simplify right side
    268,737.18x = 32,955,842,295.93
  5. Step 5: Solve for x
    x = 32,955,842,295.93/268,737.18
  6. Step 6: Final answer
    x = 122,632.24

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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.