Home / 135,456.02-186,911.58-78,097.49

Finding the Fourth Proportional to 135,456.02, 186,911.58 and 78,097.49

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Solution

The fourth proportional to 135,456.02, 186,911.58 and 78,097.49 is: 107,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,456.02 : 186,911.58 = 78,097.49 : x
  2. Step 2: Convert to fraction form
    135,456.02/186,911.58 = 78,097.49/x
  3. Step 3: Cross multiply
    135,456.02x = 186,911.58 × 78,097.49
  4. Step 4: Simplify right side
    135,456.02x = 14,597,325,249.93
  5. Step 5: Solve for x
    x = 14,597,325,249.93/135,456.02
  6. Step 6: Final answer
    x = 107,764.32

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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.