Home / 117,061.79-161,545.07-66,085.25

Finding the Fourth Proportional to 117,061.79, 161,545.07 and 66,085.25

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Solution

The fourth proportional to 117,061.79, 161,545.07 and 66,085.25 is: 91,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,061.79 : 161,545.07 = 66,085.25 : x
  2. Step 2: Convert to fraction form
    117,061.79/161,545.07 = 66,085.25/x
  3. Step 3: Cross multiply
    117,061.79x = 161,545.07 × 66,085.25
  4. Step 4: Simplify right side
    117,061.79x = 10,675,745,694.71
  5. Step 5: Solve for x
    x = 10,675,745,694.71/117,061.79
  6. Step 6: Final answer
    x = 91,197.53

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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.