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Finding the Fourth Proportional to 134,863.98, 186,112.11 and 74,434.74

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Solution

The fourth proportional to 134,863.98, 186,112.11 and 74,434.74 is: 102,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,863.98 : 186,112.11 = 74,434.74 : x
  2. Step 2: Convert to fraction form
    134,863.98/186,112.11 = 74,434.74/x
  3. Step 3: Cross multiply
    134,863.98x = 186,112.11 × 74,434.74
  4. Step 4: Simplify right side
    134,863.98x = 13,853,206,518.70
  5. Step 5: Solve for x
    x = 13,853,206,518.70/134,863.98
  6. Step 6: Final answer
    x = 102,719.84

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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.