Home / 148,936.64-205,527.36-81,868.16

Finding the Fourth Proportional to 148,936.64, 205,527.36 and 81,868.16

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Solution

The fourth proportional to 148,936.64, 205,527.36 and 81,868.16 is: 112,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,936.64 : 205,527.36 = 81,868.16 : x
  2. Step 2: Convert to fraction form
    148,936.64/205,527.36 = 81,868.16/x
  3. Step 3: Cross multiply
    148,936.64x = 205,527.36 × 81,868.16
  4. Step 4: Simplify right side
    148,936.64x = 16,826,146,792.86
  5. Step 5: Solve for x
    x = 16,826,146,792.86/148,936.64
  6. Step 6: Final answer
    x = 112,975.20

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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.