Home / 148,801.32-205,287.66-85,105.08

Finding the Fourth Proportional to 148,801.32, 205,287.66 and 85,105.08

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Solution

The fourth proportional to 148,801.32, 205,287.66 and 85,105.08 is: 117,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,801.32 : 205,287.66 = 85,105.08 : x
  2. Step 2: Convert to fraction form
    148,801.32/205,287.66 = 85,105.08/x
  3. Step 3: Cross multiply
    148,801.32x = 205,287.66 × 85,105.08
  4. Step 4: Simplify right side
    148,801.32x = 17,471,022,727.31
  5. Step 5: Solve for x
    x = 17,471,022,727.31/148,801.32
  6. Step 6: Final answer
    x = 117,411.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.