Home / 115,905.10-173,857.65-89,628.70

Finding the Fourth Proportional to 115,905.10, 173,857.65 and 89,628.70

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Solution

The fourth proportional to 115,905.10, 173,857.65 and 89,628.70 is: 134,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,905.10 : 173,857.65 = 89,628.70 : x
  2. Step 2: Convert to fraction form
    115,905.10/173,857.65 = 89,628.70/x
  3. Step 3: Cross multiply
    115,905.10x = 173,857.65 × 89,628.70
  4. Step 4: Simplify right side
    115,905.10x = 15,582,635,154.56
  5. Step 5: Solve for x
    x = 15,582,635,154.56/115,905.10
  6. Step 6: Final answer
    x = 134,443.05

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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.