Home / 135,281.66-186,763.77-81,580.28

Finding the Fourth Proportional to 135,281.66, 186,763.77 and 81,580.28

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Solution

The fourth proportional to 135,281.66, 186,763.77 and 81,580.28 is: 112,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,281.66 : 186,763.77 = 81,580.28 : x
  2. Step 2: Convert to fraction form
    135,281.66/186,763.77 = 81,580.28/x
  3. Step 3: Cross multiply
    135,281.66x = 186,763.77 × 81,580.28
  4. Step 4: Simplify right side
    135,281.66x = 15,236,240,650.46
  5. Step 5: Solve for x
    x = 15,236,240,650.46/135,281.66
  6. Step 6: Final answer
    x = 112,626.06

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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.