Home / 128,176.16-191,885.60-94,673.76

Finding the Fourth Proportional to 128,176.16, 191,885.60 and 94,673.76

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Solution

The fourth proportional to 128,176.16, 191,885.60 and 94,673.76 is: 141,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,176.16 : 191,885.60 = 94,673.76 : x
  2. Step 2: Convert to fraction form
    128,176.16/191,885.60 = 94,673.76/x
  3. Step 3: Cross multiply
    128,176.16x = 191,885.60 × 94,673.76
  4. Step 4: Simplify right side
    128,176.16x = 18,166,531,241.86
  5. Step 5: Solve for x
    x = 18,166,531,241.86/128,176.16
  6. Step 6: Final answer
    x = 141,730.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.