Home / 168,513.60-232,441.98-128,138.85

Finding the Fourth Proportional to 168,513.60, 232,441.98 and 128,138.85

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Solution

The fourth proportional to 168,513.60, 232,441.98 and 128,138.85 is: 176,750.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,513.60 : 232,441.98 = 128,138.85 : x
  2. Step 2: Convert to fraction form
    168,513.60/232,441.98 = 128,138.85/x
  3. Step 3: Cross multiply
    168,513.60x = 232,441.98 × 128,138.85
  4. Step 4: Simplify right side
    168,513.60x = 29,784,848,008.92
  5. Step 5: Solve for x
    x = 29,784,848,008.92/168,513.60
  6. Step 6: Final answer
    x = 176,750.41

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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.