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Finding the Fourth Proportional to 169,877.80, 254,847.30 and 69,983.38

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Solution

The fourth proportional to 169,877.80, 254,847.30 and 69,983.38 is: 104,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,877.80 : 254,847.30 = 69,983.38 : x
  2. Step 2: Convert to fraction form
    169,877.80/254,847.30 = 69,983.38/x
  3. Step 3: Cross multiply
    169,877.80x = 254,847.30 × 69,983.38
  4. Step 4: Simplify right side
    169,877.80x = 17,835,075,437.87
  5. Step 5: Solve for x
    x = 17,835,075,437.87/169,877.80
  6. Step 6: Final answer
    x = 104,987.68

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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.