Home / 111,814.79-154,175.27-89,136.14

Finding the Fourth Proportional to 111,814.79, 154,175.27 and 89,136.14

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Solution

The fourth proportional to 111,814.79, 154,175.27 and 89,136.14 is: 122,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,814.79 : 154,175.27 = 89,136.14 : x
  2. Step 2: Convert to fraction form
    111,814.79/154,175.27 = 89,136.14/x
  3. Step 3: Cross multiply
    111,814.79x = 154,175.27 × 89,136.14
  4. Step 4: Simplify right side
    111,814.79x = 13,742,587,234.70
  5. Step 5: Solve for x
    x = 13,742,587,234.70/111,814.79
  6. Step 6: Final answer
    x = 122,904.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.