Home / 204,869.12-307,300.02-78,475.10

Finding the Fourth Proportional to 204,869.12, 307,300.02 and 78,475.10

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Solution

The fourth proportional to 204,869.12, 307,300.02 and 78,475.10 is: 117,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,869.12 : 307,300.02 = 78,475.10 : x
  2. Step 2: Convert to fraction form
    204,869.12/307,300.02 = 78,475.10/x
  3. Step 3: Cross multiply
    204,869.12x = 307,300.02 × 78,475.10
  4. Step 4: Simplify right side
    204,869.12x = 24,115,399,799.50
  5. Step 5: Solve for x
    x = 24,115,399,799.50/204,869.12
  6. Step 6: Final answer
    x = 117,711.25

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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.