Home / 119,867.40-165,420.36-66,156.57

Finding the Fourth Proportional to 119,867.40, 165,420.36 and 66,156.57

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Solution

The fourth proportional to 119,867.40, 165,420.36 and 66,156.57 is: 91,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,867.40 : 165,420.36 = 66,156.57 : x
  2. Step 2: Convert to fraction form
    119,867.40/165,420.36 = 66,156.57/x
  3. Step 3: Cross multiply
    119,867.40x = 165,420.36 × 66,156.57
  4. Step 4: Simplify right side
    119,867.40x = 10,943,643,625.77
  5. Step 5: Solve for x
    x = 10,943,643,625.77/119,867.40
  6. Step 6: Final answer
    x = 91,297.91

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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.