Home / 119,820.88-165,355.98-66,106.60

Finding the Fourth Proportional to 119,820.88, 165,355.98 and 66,106.60

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Solution

The fourth proportional to 119,820.88, 165,355.98 and 66,106.60 is: 91,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,820.88 : 165,355.98 = 66,106.60 : x
  2. Step 2: Convert to fraction form
    119,820.88/165,355.98 = 66,106.60/x
  3. Step 3: Cross multiply
    119,820.88x = 165,355.98 × 66,106.60
  4. Step 4: Simplify right side
    119,820.88x = 10,931,121,627.47
  5. Step 5: Solve for x
    x = 10,931,121,627.47/119,820.88
  6. Step 6: Final answer
    x = 91,228.85

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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.