Home / 135,110.16-186,406.56-87,423.84

Finding the Fourth Proportional to 135,110.16, 186,406.56 and 87,423.84

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Solution

The fourth proportional to 135,110.16, 186,406.56 and 87,423.84 is: 120,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,110.16 : 186,406.56 = 87,423.84 : x
  2. Step 2: Convert to fraction form
    135,110.16/186,406.56 = 87,423.84/x
  3. Step 3: Cross multiply
    135,110.16x = 186,406.56 × 87,423.84
  4. Step 4: Simplify right side
    135,110.16x = 16,296,377,276.39
  5. Step 5: Solve for x
    x = 16,296,377,276.39/135,110.16
  6. Step 6: Final answer
    x = 120,615.48

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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.