Home / 128,167.20-176,875.77-73,719.27

Finding the Fourth Proportional to 128,167.20, 176,875.77 and 73,719.27

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Solution

The fourth proportional to 128,167.20, 176,875.77 and 73,719.27 is: 101,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,167.20 : 176,875.77 = 73,719.27 : x
  2. Step 2: Convert to fraction form
    128,167.20/176,875.77 = 73,719.27/x
  3. Step 3: Cross multiply
    128,167.20x = 176,875.77 × 73,719.27
  4. Step 4: Simplify right side
    128,167.20x = 13,039,152,645.09
  5. Step 5: Solve for x
    x = 13,039,152,645.09/128,167.20
  6. Step 6: Final answer
    x = 101,735.49

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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.