Home / 148,940.64-223,523.28-78,835.68

Finding the Fourth Proportional to 148,940.64, 223,523.28 and 78,835.68

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Solution

The fourth proportional to 148,940.64, 223,523.28 and 78,835.68 is: 118,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940.64 : 223,523.28 = 78,835.68 : x
  2. Step 2: Convert to fraction form
    148,940.64/223,523.28 = 78,835.68/x
  3. Step 3: Cross multiply
    148,940.64x = 223,523.28 × 78,835.68
  4. Step 4: Simplify right side
    148,940.64x = 17,621,609,774.63
  5. Step 5: Solve for x
    x = 17,621,609,774.63/148,940.64
  6. Step 6: Final answer
    x = 118,312.97

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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.