Home / 179,115-247,178.70-98,540.80

Finding the Fourth Proportional to 179,115, 247,178.70 and 98,540.80

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Solution

The fourth proportional to 179,115, 247,178.70 and 98,540.80 is: 135,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,115 : 247,178.70 = 98,540.80 : x
  2. Step 2: Convert to fraction form
    179,115/247,178.70 = 98,540.80/x
  3. Step 3: Cross multiply
    179,115x = 247,178.70 × 98,540.80
  4. Step 4: Simplify right side
    179,115x = 24,357,186,840.96
  5. Step 5: Solve for x
    x = 24,357,186,840.96/179,115
  6. Step 6: Final answer
    x = 135,986.30

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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.