Home / 98,177.05-135,441.55-61,856.45

Finding the Fourth Proportional to 98,177.05, 135,441.55 and 61,856.45

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Solution

The fourth proportional to 98,177.05, 135,441.55 and 61,856.45 is: 85,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,177.05 : 135,441.55 = 61,856.45 : x
  2. Step 2: Convert to fraction form
    98,177.05/135,441.55 = 61,856.45/x
  3. Step 3: Cross multiply
    98,177.05x = 135,441.55 × 61,856.45
  4. Step 4: Simplify right side
    98,177.05x = 8,377,933,465.50
  5. Step 5: Solve for x
    x = 8,377,933,465.50/98,177.05
  6. Step 6: Final answer
    x = 85,334.95

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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.