Home / 113,225.54-169,845.60-66,380

Finding the Fourth Proportional to 113,225.54, 169,845.60 and 66,380

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Solution

The fourth proportional to 113,225.54, 169,845.60 and 66,380 is: 99,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,225.54 : 169,845.60 = 66,380 : x
  2. Step 2: Convert to fraction form
    113,225.54/169,845.60 = 66,380/x
  3. Step 3: Cross multiply
    113,225.54x = 169,845.60 × 66,380
  4. Step 4: Simplify right side
    113,225.54x = 11,274,350,928
  5. Step 5: Solve for x
    x = 11,274,350,928/113,225.54
  6. Step 6: Final answer
    x = 99,574.27

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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.