Home / 178,440.12-267,730.23-78,530.23

Finding the Fourth Proportional to 178,440.12, 267,730.23 and 78,530.23

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Solution

The fourth proportional to 178,440.12, 267,730.23 and 78,530.23 is: 117,826.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,440.12 : 267,730.23 = 78,530.23 : x
  2. Step 2: Convert to fraction form
    178,440.12/267,730.23 = 78,530.23/x
  3. Step 3: Cross multiply
    178,440.12x = 267,730.23 × 78,530.23
  4. Step 4: Simplify right side
    178,440.12x = 21,024,916,539.85
  5. Step 5: Solve for x
    x = 21,024,916,539.85/178,440.12
  6. Step 6: Final answer
    x = 117,826.17

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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.