Home / 119,865.40-165,417.60-66,154.57

Finding the Fourth Proportional to 119,865.40, 165,417.60 and 66,154.57

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Solution

The fourth proportional to 119,865.40, 165,417.60 and 66,154.57 is: 91,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,865.40 : 165,417.60 = 66,154.57 : x
  2. Step 2: Convert to fraction form
    119,865.40/165,417.60 = 66,154.57/x
  3. Step 3: Cross multiply
    119,865.40x = 165,417.60 × 66,154.57
  4. Step 4: Simplify right side
    119,865.40x = 10,943,130,198.43
  5. Step 5: Solve for x
    x = 10,943,130,198.43/119,865.40
  6. Step 6: Final answer
    x = 91,295.15

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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.