Home / 316,929.60-475,293.99-103,648.23

Finding the Fourth Proportional to 316,929.60, 475,293.99 and 103,648.23

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Solution

The fourth proportional to 316,929.60, 475,293.99 and 103,648.23 is: 155,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,929.60 : 475,293.99 = 103,648.23 : x
  2. Step 2: Convert to fraction form
    316,929.60/475,293.99 = 103,648.23/x
  3. Step 3: Cross multiply
    316,929.60x = 475,293.99 × 103,648.23
  4. Step 4: Simplify right side
    316,929.60x = 49,263,380,793.14
  5. Step 5: Solve for x
    x = 49,263,380,793.14/316,929.60
  6. Step 6: Final answer
    x = 155,439.51

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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.