Home / 119,109.60-164,406.24-76,681.80

Finding the Fourth Proportional to 119,109.60, 164,406.24 and 76,681.80

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Solution

The fourth proportional to 119,109.60, 164,406.24 and 76,681.80 is: 105,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,109.60 : 164,406.24 = 76,681.80 : x
  2. Step 2: Convert to fraction form
    119,109.60/164,406.24 = 76,681.80/x
  3. Step 3: Cross multiply
    119,109.60x = 164,406.24 × 76,681.80
  4. Step 4: Simplify right side
    119,109.60x = 12,606,966,414.43
  5. Step 5: Solve for x
    x = 12,606,966,414.43/119,109.60
  6. Step 6: Final answer
    x = 105,843.41

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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.