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Finding the Fourth Proportional to 169,850.40, 254,775.60 and 69,977.40

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Solution

The fourth proportional to 169,850.40, 254,775.60 and 69,977.40 is: 104,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,850.40 : 254,775.60 = 69,977.40 : x
  2. Step 2: Convert to fraction form
    169,850.40/254,775.60 = 69,977.40/x
  3. Step 3: Cross multiply
    169,850.40x = 254,775.60 × 69,977.40
  4. Step 4: Simplify right side
    169,850.40x = 17,828,534,071.44
  5. Step 5: Solve for x
    x = 17,828,534,071.44/169,850.40
  6. Step 6: Final answer
    x = 104,966.10

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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.