Home / 128,932.71-193,355.27-44,673.21

Finding the Fourth Proportional to 128,932.71, 193,355.27 and 44,673.21

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Solution

The fourth proportional to 128,932.71, 193,355.27 and 44,673.21 is: 66,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,932.71 : 193,355.27 = 44,673.21 : x
  2. Step 2: Convert to fraction form
    128,932.71/193,355.27 = 44,673.21/x
  3. Step 3: Cross multiply
    128,932.71x = 193,355.27 × 44,673.21
  4. Step 4: Simplify right side
    128,932.71x = 8,637,800,581.32
  5. Step 5: Solve for x
    x = 8,637,800,581.32/128,932.71
  6. Step 6: Final answer
    x = 66,994.64

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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.