Home / 176,445.42-243,523.71-128,856.30

Finding the Fourth Proportional to 176,445.42, 243,523.71 and 128,856.30

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Solution

The fourth proportional to 176,445.42, 243,523.71 and 128,856.30 is: 177,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,445.42 : 243,523.71 = 128,856.30 : x
  2. Step 2: Convert to fraction form
    176,445.42/243,523.71 = 128,856.30/x
  3. Step 3: Cross multiply
    176,445.42x = 243,523.71 × 128,856.30
  4. Step 4: Simplify right side
    176,445.42x = 31,379,564,232.87
  5. Step 5: Solve for x
    x = 31,379,564,232.87/176,445.42
  6. Step 6: Final answer
    x = 177,842.89

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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.