Home / 151,912.28-209,635.26-83,935.76

Finding the Fourth Proportional to 151,912.28, 209,635.26 and 83,935.76

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Solution

The fourth proportional to 151,912.28, 209,635.26 and 83,935.76 is: 115,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,912.28 : 209,635.26 = 83,935.76 : x
  2. Step 2: Convert to fraction form
    151,912.28/209,635.26 = 83,935.76/x
  3. Step 3: Cross multiply
    151,912.28x = 209,635.26 × 83,935.76
  4. Step 4: Simplify right side
    151,912.28x = 17,595,894,870.90
  5. Step 5: Solve for x
    x = 17,595,894,870.90/151,912.28
  6. Step 6: Final answer
    x = 115,829.31

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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.