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Finding the Fourth Proportional to 169,588, 254,051.04 and 80,719.36

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Solution

The fourth proportional to 169,588, 254,051.04 and 80,719.36 is: 120,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,588 : 254,051.04 = 80,719.36 : x
  2. Step 2: Convert to fraction form
    169,588/254,051.04 = 80,719.36/x
  3. Step 3: Cross multiply
    169,588x = 254,051.04 × 80,719.36
  4. Step 4: Simplify right side
    169,588x = 20,506,837,356.13
  5. Step 5: Solve for x
    x = 20,506,837,356.13/169,588
  6. Step 6: Final answer
    x = 120,921.51

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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.