Home / 176,446.17-243,524.75-128,857.05

Finding the Fourth Proportional to 176,446.17, 243,524.75 and 128,857.05

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Solution

The fourth proportional to 176,446.17, 243,524.75 and 128,857.05 is: 177,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,446.17 : 243,524.75 = 128,857.05 : x
  2. Step 2: Convert to fraction form
    176,446.17/243,524.75 = 128,857.05/x
  3. Step 3: Cross multiply
    176,446.17x = 243,524.75 × 128,857.05
  4. Step 4: Simplify right side
    176,446.17x = 31,379,880,242.70
  5. Step 5: Solve for x
    x = 31,379,880,242.70/176,446.17
  6. Step 6: Final answer
    x = 177,843.93

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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.