Home / 119,631.54-165,091.50-65,916.40

Finding the Fourth Proportional to 119,631.54, 165,091.50 and 65,916.40

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Solution

The fourth proportional to 119,631.54, 165,091.50 and 65,916.40 is: 90,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,631.54 : 165,091.50 = 65,916.40 : x
  2. Step 2: Convert to fraction form
    119,631.54/165,091.50 = 65,916.40/x
  3. Step 3: Cross multiply
    119,631.54x = 165,091.50 × 65,916.40
  4. Step 4: Simplify right side
    119,631.54x = 10,882,237,350.60
  5. Step 5: Solve for x
    x = 10,882,237,350.60/119,631.54
  6. Step 6: Final answer
    x = 90,964.62

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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.