Home / 186,916.64-280,374.92-103,209.04

Finding the Fourth Proportional to 186,916.64, 280,374.92 and 103,209.04

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Solution

The fourth proportional to 186,916.64, 280,374.92 and 103,209.04 is: 154,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,916.64 : 280,374.92 = 103,209.04 : x
  2. Step 2: Convert to fraction form
    186,916.64/280,374.92 = 103,209.04/x
  3. Step 3: Cross multiply
    186,916.64x = 280,374.92 × 103,209.04
  4. Step 4: Simplify right side
    186,916.64x = 28,937,226,333.28
  5. Step 5: Solve for x
    x = 28,937,226,333.28/186,916.64
  6. Step 6: Final answer
    x = 154,813.54

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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.