Home / 148,890.96-205,482.12-81,836.88

Finding the Fourth Proportional to 148,890.96, 205,482.12 and 81,836.88

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Solution

The fourth proportional to 148,890.96, 205,482.12 and 81,836.88 is: 112,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,890.96 : 205,482.12 = 81,836.88 : x
  2. Step 2: Convert to fraction form
    148,890.96/205,482.12 = 81,836.88/x
  3. Step 3: Cross multiply
    148,890.96x = 205,482.12 × 81,836.88
  4. Step 4: Simplify right side
    148,890.96x = 16,816,015,596.59
  5. Step 5: Solve for x
    x = 16,816,015,596.59/148,890.96
  6. Step 6: Final answer
    x = 112,941.82

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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.