Home / 148,934.64-205,529.79-81,866.64

Finding the Fourth Proportional to 148,934.64, 205,529.79 and 81,866.64

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Solution

The fourth proportional to 148,934.64, 205,529.79 and 81,866.64 is: 112,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,934.64 : 205,529.79 = 81,866.64 : x
  2. Step 2: Convert to fraction form
    148,934.64/205,529.79 = 81,866.64/x
  3. Step 3: Cross multiply
    148,934.64x = 205,529.79 × 81,866.64
  4. Step 4: Simplify right side
    148,934.64x = 16,826,033,327.21
  5. Step 5: Solve for x
    x = 16,826,033,327.21/148,934.64
  6. Step 6: Final answer
    x = 112,975.96

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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.