Home / 193,531.80-289,908.90-134,434.20

Finding the Fourth Proportional to 193,531.80, 289,908.90 and 134,434.20

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Solution

The fourth proportional to 193,531.80, 289,908.90 and 134,434.20 is: 201,381.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,531.80 : 289,908.90 = 134,434.20 : x
  2. Step 2: Convert to fraction form
    193,531.80/289,908.90 = 134,434.20/x
  3. Step 3: Cross multiply
    193,531.80x = 289,908.90 × 134,434.20
  4. Step 4: Simplify right side
    193,531.80x = 38,973,671,044.38
  5. Step 5: Solve for x
    x = 38,973,671,044.38/193,531.80
  6. Step 6: Final answer
    x = 201,381.23

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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.