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Finding the Fourth Proportional to 146,165.40, 201,708.86 and 79,097.40

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Solution

The fourth proportional to 146,165.40, 201,708.86 and 79,097.40 is: 109,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,165.40 : 201,708.86 = 79,097.40 : x
  2. Step 2: Convert to fraction form
    146,165.40/201,708.86 = 79,097.40/x
  3. Step 3: Cross multiply
    146,165.40x = 201,708.86 × 79,097.40
  4. Step 4: Simplify right side
    146,165.40x = 15,954,646,382.96
  5. Step 5: Solve for x
    x = 15,954,646,382.96/146,165.40
  6. Step 6: Final answer
    x = 109,154.74

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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.