Home / 129,319.70-178,402.57-93,452.90

Finding the Fourth Proportional to 129,319.70, 178,402.57 and 93,452.90

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Solution

The fourth proportional to 129,319.70, 178,402.57 and 93,452.90 is: 128,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,319.70 : 178,402.57 = 93,452.90 : x
  2. Step 2: Convert to fraction form
    129,319.70/178,402.57 = 93,452.90/x
  3. Step 3: Cross multiply
    129,319.70x = 178,402.57 × 93,452.90
  4. Step 4: Simplify right side
    129,319.70x = 16,672,236,408.31
  5. Step 5: Solve for x
    x = 16,672,236,408.31/129,319.70
  6. Step 6: Final answer
    x = 128,922.64

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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.