Home / 115,333.28-159,156.30-67,618.40

Finding the Fourth Proportional to 115,333.28, 159,156.30 and 67,618.40

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Solution

The fourth proportional to 115,333.28, 159,156.30 and 67,618.40 is: 93,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,333.28 : 159,156.30 = 67,618.40 : x
  2. Step 2: Convert to fraction form
    115,333.28/159,156.30 = 67,618.40/x
  3. Step 3: Cross multiply
    115,333.28x = 159,156.30 × 67,618.40
  4. Step 4: Simplify right side
    115,333.28x = 10,761,894,355.92
  5. Step 5: Solve for x
    x = 10,761,894,355.92/115,333.28
  6. Step 6: Final answer
    x = 93,311.27

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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.