Home / 212,032.38-317,925.56-85,569.11

Finding the Fourth Proportional to 212,032.38, 317,925.56 and 85,569.11

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Solution

The fourth proportional to 212,032.38, 317,925.56 and 85,569.11 is: 128,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,032.38 : 317,925.56 = 85,569.11 : x
  2. Step 2: Convert to fraction form
    212,032.38/317,925.56 = 85,569.11/x
  3. Step 3: Cross multiply
    212,032.38x = 317,925.56 × 85,569.11
  4. Step 4: Simplify right side
    212,032.38x = 27,204,606,550.64
  5. Step 5: Solve for x
    x = 27,204,606,550.64/212,032.38
  6. Step 6: Final answer
    x = 128,304.02

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1.5x scale

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.