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Finding the Fourth Proportional to 134,453.25, 201,679.89 and 40,959

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Solution

The fourth proportional to 134,453.25, 201,679.89 and 40,959 is: 61,438.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,453.25 : 201,679.89 = 40,959 : x
  2. Step 2: Convert to fraction form
    134,453.25/201,679.89 = 40,959/x
  3. Step 3: Cross multiply
    134,453.25x = 201,679.89 × 40,959
  4. Step 4: Simplify right side
    134,453.25x = 8,260,606,614.51
  5. Step 5: Solve for x
    x = 8,260,606,614.51/134,453.25
  6. Step 6: Final answer
    x = 61,438.50

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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.