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Finding the Fourth Proportional to 172,858, 238,544.04 and 97,409.20

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Solution

The fourth proportional to 172,858, 238,544.04 and 97,409.20 is: 134,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,858 : 238,544.04 = 97,409.20 : x
  2. Step 2: Convert to fraction form
    172,858/238,544.04 = 97,409.20/x
  3. Step 3: Cross multiply
    172,858x = 238,544.04 × 97,409.20
  4. Step 4: Simplify right side
    172,858x = 23,236,384,101.17
  5. Step 5: Solve for x
    x = 23,236,384,101.17/172,858
  6. Step 6: Final answer
    x = 134,424.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.