Home / 102,581.36-141,450.66-66,704.84

Finding the Fourth Proportional to 102,581.36, 141,450.66 and 66,704.84

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Solution

The fourth proportional to 102,581.36, 141,450.66 and 66,704.84 is: 91,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,581.36 : 141,450.66 = 66,704.84 : x
  2. Step 2: Convert to fraction form
    102,581.36/141,450.66 = 66,704.84/x
  3. Step 3: Cross multiply
    102,581.36x = 141,450.66 × 66,704.84
  4. Step 4: Simplify right side
    102,581.36x = 9,435,443,643.19
  5. Step 5: Solve for x
    x = 9,435,443,643.19/102,581.36
  6. Step 6: Final answer
    x = 91,980.10

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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.