Home / 178,013.04-267,111.60-78,243.28

Finding the Fourth Proportional to 178,013.04, 267,111.60 and 78,243.28

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Solution

The fourth proportional to 178,013.04, 267,111.60 and 78,243.28 is: 117,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,013.04 : 267,111.60 = 78,243.28 : x
  2. Step 2: Convert to fraction form
    178,013.04/267,111.60 = 78,243.28/x
  3. Step 3: Cross multiply
    178,013.04x = 267,111.60 × 78,243.28
  4. Step 4: Simplify right side
    178,013.04x = 20,899,687,710.05
  5. Step 5: Solve for x
    x = 20,899,687,710.05/178,013.04
  6. Step 6: Final answer
    x = 117,405.37

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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.