Home / 117,347.28-161,896.80-77,082.96

Finding the Fourth Proportional to 117,347.28, 161,896.80 and 77,082.96

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Solution

The fourth proportional to 117,347.28, 161,896.80 and 77,082.96 is: 106,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,347.28 : 161,896.80 = 77,082.96 : x
  2. Step 2: Convert to fraction form
    117,347.28/161,896.80 = 77,082.96/x
  3. Step 3: Cross multiply
    117,347.28x = 161,896.80 × 77,082.96
  4. Step 4: Simplify right side
    117,347.28x = 12,479,484,558.53
  5. Step 5: Solve for x
    x = 12,479,484,558.53/117,347.28
  6. Step 6: Final answer
    x = 106,346.60

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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.