Home / 102,585.75-141,456.74-66,709.23

Finding the Fourth Proportional to 102,585.75, 141,456.74 and 66,709.23

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Solution

The fourth proportional to 102,585.75, 141,456.74 and 66,709.23 is: 91,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,585.75 : 141,456.74 = 66,709.23 : x
  2. Step 2: Convert to fraction form
    102,585.75/141,456.74 = 66,709.23/x
  3. Step 3: Cross multiply
    102,585.75x = 141,456.74 × 66,709.23
  4. Step 4: Simplify right side
    102,585.75x = 9,436,470,203.71
  5. Step 5: Solve for x
    x = 9,436,470,203.71/102,585.75
  6. Step 6: Final answer
    x = 91,986.17

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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.