Home / 176,445.92-243,524.40-128,856.80

Finding the Fourth Proportional to 176,445.92, 243,524.40 and 128,856.80

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Solution

The fourth proportional to 176,445.92, 243,524.40 and 128,856.80 is: 177,843.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,445.92 : 243,524.40 = 128,856.80 : x
  2. Step 2: Convert to fraction form
    176,445.92/243,524.40 = 128,856.80/x
  3. Step 3: Cross multiply
    176,445.92x = 243,524.40 × 128,856.80
  4. Step 4: Simplify right side
    176,445.92x = 31,379,774,905.92
  5. Step 5: Solve for x
    x = 31,379,774,905.92/176,445.92
  6. Step 6: Final answer
    x = 177,843.58

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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.