Home / 178,222.13-267,312.40-71,601.78

Finding the Fourth Proportional to 178,222.13, 267,312.40 and 71,601.78

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Solution

The fourth proportional to 178,222.13, 267,312.40 and 71,601.78 is: 107,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,222.13 : 267,312.40 = 71,601.78 : x
  2. Step 2: Convert to fraction form
    178,222.13/267,312.40 = 71,601.78/x
  3. Step 3: Cross multiply
    178,222.13x = 267,312.40 × 71,601.78
  4. Step 4: Simplify right side
    178,222.13x = 19,140,043,959.26
  5. Step 5: Solve for x
    x = 19,140,043,959.26/178,222.13
  6. Step 6: Final answer
    x = 107,394.32

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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.