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Finding the Fourth Proportional to 136,047.60, 203,901.30 and 69,514.20

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Solution

The fourth proportional to 136,047.60, 203,901.30 and 69,514.20 is: 104,184.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,047.60 : 203,901.30 = 69,514.20 : x
  2. Step 2: Convert to fraction form
    136,047.60/203,901.30 = 69,514.20/x
  3. Step 3: Cross multiply
    136,047.60x = 203,901.30 × 69,514.20
  4. Step 4: Simplify right side
    136,047.60x = 14,174,035,748.46
  5. Step 5: Solve for x
    x = 14,174,035,748.46/136,047.60
  6. Step 6: Final answer
    x = 104,184.39

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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.