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Finding the Fourth Proportional to 141,275, 211,663.44 and 74,568.16

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Solution

The fourth proportional to 141,275, 211,663.44 and 74,568.16 is: 111,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,275 : 211,663.44 = 74,568.16 : x
  2. Step 2: Convert to fraction form
    141,275/211,663.44 = 74,568.16/x
  3. Step 3: Cross multiply
    141,275x = 211,663.44 × 74,568.16
  4. Step 4: Simplify right side
    141,275x = 15,783,353,260.07
  5. Step 5: Solve for x
    x = 15,783,353,260.07/141,275
  6. Step 6: Final answer
    x = 111,720.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.