Home / 204,650.64-307,008.75-86,339.40

Finding the Fourth Proportional to 204,650.64, 307,008.75 and 86,339.40

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Solution

The fourth proportional to 204,650.64, 307,008.75 and 86,339.40 is: 129,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,650.64 : 307,008.75 = 86,339.40 : x
  2. Step 2: Convert to fraction form
    204,650.64/307,008.75 = 86,339.40/x
  3. Step 3: Cross multiply
    204,650.64x = 307,008.75 × 86,339.40
  4. Step 4: Simplify right side
    204,650.64x = 26,506,951,269.75
  5. Step 5: Solve for x
    x = 26,506,951,269.75/204,650.64
  6. Step 6: Final answer
    x = 129,522.93

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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.