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Finding the Fourth Proportional to 169,969, 254,983.86 and 70,073.64

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Solution

The fourth proportional to 169,969, 254,983.86 and 70,073.64 is: 105,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,969 : 254,983.86 = 70,073.64 : x
  2. Step 2: Convert to fraction form
    169,969/254,983.86 = 70,073.64/x
  3. Step 3: Cross multiply
    169,969x = 254,983.86 × 70,073.64
  4. Step 4: Simplify right side
    169,969x = 17,867,647,211.45
  5. Step 5: Solve for x
    x = 17,867,647,211.45/169,969
  6. Step 6: Final answer
    x = 105,122.98

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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.