Home / 316,916.48-475,364.96-129,787.04

Finding the Fourth Proportional to 316,916.48, 475,364.96 and 129,787.04

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Solution

The fourth proportional to 316,916.48, 475,364.96 and 129,787.04 is: 194,676.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,916.48 : 475,364.96 = 129,787.04 : x
  2. Step 2: Convert to fraction form
    316,916.48/475,364.96 = 129,787.04/x
  3. Step 3: Cross multiply
    316,916.48x = 475,364.96 × 129,787.04
  4. Step 4: Simplify right side
    316,916.48x = 61,696,211,078.12
  5. Step 5: Solve for x
    x = 61,696,211,078.12/316,916.48
  6. Step 6: Final answer
    x = 194,676.56

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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.