Home / 116,874.14-161,159.54-74,378.30

Finding the Fourth Proportional to 116,874.14, 161,159.54 and 74,378.30

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Solution

The fourth proportional to 116,874.14, 161,159.54 and 74,378.30 is: 102,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,874.14 : 161,159.54 = 74,378.30 : x
  2. Step 2: Convert to fraction form
    116,874.14/161,159.54 = 74,378.30/x
  3. Step 3: Cross multiply
    116,874.14x = 161,159.54 × 74,378.30
  4. Step 4: Simplify right side
    116,874.14x = 11,986,771,436.29
  5. Step 5: Solve for x
    x = 11,986,771,436.29/116,874.14
  6. Step 6: Final answer
    x = 102,561.37

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1.5x scale

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.