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Finding the Fourth Proportional to 113,230.80, 169,840.80 and 38,343.60

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Solution

The fourth proportional to 113,230.80, 169,840.80 and 38,343.60 is: 57,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,230.80 : 169,840.80 = 38,343.60 : x
  2. Step 2: Convert to fraction form
    113,230.80/169,840.80 = 38,343.60/x
  3. Step 3: Cross multiply
    113,230.80x = 169,840.80 × 38,343.60
  4. Step 4: Simplify right side
    113,230.80x = 6,512,307,698.88
  5. Step 5: Solve for x
    x = 6,512,307,698.88/113,230.80
  6. Step 6: Final answer
    x = 57,513.57

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1.5x scale

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.