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Finding the Fourth Proportional to 119,496.40, 179,633.40 and 102,389.20

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Solution

The fourth proportional to 119,496.40, 179,633.40 and 102,389.20 is: 153,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,496.40 : 179,633.40 = 102,389.20 : x
  2. Step 2: Convert to fraction form
    119,496.40/179,633.40 = 102,389.20/x
  3. Step 3: Cross multiply
    119,496.40x = 179,633.40 × 102,389.20
  4. Step 4: Simplify right side
    119,496.40x = 18,392,520,119.28
  5. Step 5: Solve for x
    x = 18,392,520,119.28/119,496.40
  6. Step 6: Final answer
    x = 153,916.94

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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.