Home / 119,890.27-165,447.78-65,442.23

Finding the Fourth Proportional to 119,890.27, 165,447.78 and 65,442.23

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Solution

The fourth proportional to 119,890.27, 165,447.78 and 65,442.23 is: 90,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,890.27 : 165,447.78 = 65,442.23 : x
  2. Step 2: Convert to fraction form
    119,890.27/165,447.78 = 65,442.23/x
  3. Step 3: Cross multiply
    119,890.27x = 165,447.78 × 65,442.23
  4. Step 4: Simplify right side
    119,890.27x = 10,827,271,219.53
  5. Step 5: Solve for x
    x = 10,827,271,219.53/119,890.27
  6. Step 6: Final answer
    x = 90,309.84

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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.