Home / 128,282.28-177,035.08-73,093.32

Finding the Fourth Proportional to 128,282.28, 177,035.08 and 73,093.32

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Solution

The fourth proportional to 128,282.28, 177,035.08 and 73,093.32 is: 100,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,282.28 : 177,035.08 = 73,093.32 : x
  2. Step 2: Convert to fraction form
    128,282.28/177,035.08 = 73,093.32/x
  3. Step 3: Cross multiply
    128,282.28x = 177,035.08 × 73,093.32
  4. Step 4: Simplify right side
    128,282.28x = 12,940,081,753.67
  5. Step 5: Solve for x
    x = 12,940,081,753.67/128,282.28
  6. Step 6: Final answer
    x = 100,871.93

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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.