Home / 118,757.40-178,136.11-30,011.16

Finding the Fourth Proportional to 118,757.40, 178,136.11 and 30,011.16

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Solution

The fourth proportional to 118,757.40, 178,136.11 and 30,011.16 is: 45,016.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,757.40 : 178,136.11 = 30,011.16 : x
  2. Step 2: Convert to fraction form
    118,757.40/178,136.11 = 30,011.16/x
  3. Step 3: Cross multiply
    118,757.40x = 178,136.11 × 30,011.16
  4. Step 4: Simplify right side
    118,757.40x = 5,346,071,298.99
  5. Step 5: Solve for x
    x = 5,346,071,298.99/118,757.40
  6. Step 6: Final answer
    x = 45,016.74

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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.