Home / 112,105.70-154,699.68-64,355.92

Finding the Fourth Proportional to 112,105.70, 154,699.68 and 64,355.92

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Solution

The fourth proportional to 112,105.70, 154,699.68 and 64,355.92 is: 88,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,105.70 : 154,699.68 = 64,355.92 : x
  2. Step 2: Convert to fraction form
    112,105.70/154,699.68 = 64,355.92/x
  3. Step 3: Cross multiply
    112,105.70x = 154,699.68 × 64,355.92
  4. Step 4: Simplify right side
    112,105.70x = 9,955,840,230.11
  5. Step 5: Solve for x
    x = 9,955,840,230.11/112,105.70
  6. Step 6: Final answer
    x = 88,807.62

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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.