Home / 85,298.08-127,947.12-82,965.28

Finding the Fourth Proportional to 85,298.08, 127,947.12 and 82,965.28

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Solution

The fourth proportional to 85,298.08, 127,947.12 and 82,965.28 is: 124,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,298.08 : 127,947.12 = 82,965.28 : x
  2. Step 2: Convert to fraction form
    85,298.08/127,947.12 = 82,965.28/x
  3. Step 3: Cross multiply
    85,298.08x = 127,947.12 × 82,965.28
  4. Step 4: Simplify right side
    85,298.08x = 10,615,168,635.99
  5. Step 5: Solve for x
    x = 10,615,168,635.99/85,298.08
  6. Step 6: Final answer
    x = 124,447.92

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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.