Home / 119,090.12-178,401.62-69,065.12

Finding the Fourth Proportional to 119,090.12, 178,401.62 and 69,065.12

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Solution

The fourth proportional to 119,090.12, 178,401.62 and 69,065.12 is: 103,462.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,090.12 : 178,401.62 = 69,065.12 : x
  2. Step 2: Convert to fraction form
    119,090.12/178,401.62 = 69,065.12/x
  3. Step 3: Cross multiply
    119,090.12x = 178,401.62 × 69,065.12
  4. Step 4: Simplify right side
    119,090.12x = 12,321,329,293.49
  5. Step 5: Solve for x
    x = 12,321,329,293.49/119,090.12
  6. Step 6: Final answer
    x = 103,462.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.