Home / 192,079.04-287,421.30-138,877.56

Finding the Fourth Proportional to 192,079.04, 287,421.30 and 138,877.56

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Solution

The fourth proportional to 192,079.04, 287,421.30 and 138,877.56 is: 207,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,079.04 : 287,421.30 = 138,877.56 : x
  2. Step 2: Convert to fraction form
    192,079.04/287,421.30 = 138,877.56/x
  3. Step 3: Cross multiply
    192,079.04x = 287,421.30 × 138,877.56
  4. Step 4: Simplify right side
    192,079.04x = 39,916,368,836.03
  5. Step 5: Solve for x
    x = 39,916,368,836.03/192,079.04
  6. Step 6: Final answer
    x = 207,812.21

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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.