Home / 119,803.15-165,328.81-66,087.39

Finding the Fourth Proportional to 119,803.15, 165,328.81 and 66,087.39

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Solution

The fourth proportional to 119,803.15, 165,328.81 and 66,087.39 is: 91,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,803.15 : 165,328.81 = 66,087.39 : x
  2. Step 2: Convert to fraction form
    119,803.15/165,328.81 = 66,087.39/x
  3. Step 3: Cross multiply
    119,803.15x = 165,328.81 × 66,087.39
  4. Step 4: Simplify right side
    119,803.15x = 10,926,150,464.25
  5. Step 5: Solve for x
    x = 10,926,150,464.25/119,803.15
  6. Step 6: Final answer
    x = 91,200.86

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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.