Home / 268,717.84-403,011.91-79,126.66

Finding the Fourth Proportional to 268,717.84, 403,011.91 and 79,126.66

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Solution

The fourth proportional to 268,717.84, 403,011.91 and 79,126.66 is: 118,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,717.84 : 403,011.91 = 79,126.66 : x
  2. Step 2: Convert to fraction form
    268,717.84/403,011.91 = 79,126.66/x
  3. Step 3: Cross multiply
    268,717.84x = 403,011.91 × 79,126.66
  4. Step 4: Simplify right side
    268,717.84x = 31,888,984,269.16
  5. Step 5: Solve for x
    x = 31,888,984,269.16/268,717.84
  6. Step 6: Final answer
    x = 118,670.89

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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.