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Finding the Fourth Proportional to 169,719.40, 254,579.10 and 69,846.40

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Solution

The fourth proportional to 169,719.40, 254,579.10 and 69,846.40 is: 104,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,719.40 : 254,579.10 = 69,846.40 : x
  2. Step 2: Convert to fraction form
    169,719.40/254,579.10 = 69,846.40/x
  3. Step 3: Cross multiply
    169,719.40x = 254,579.10 × 69,846.40
  4. Step 4: Simplify right side
    169,719.40x = 17,781,433,650.24
  5. Step 5: Solve for x
    x = 17,781,433,650.24/169,719.40
  6. Step 6: Final answer
    x = 104,769.60

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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.