Home / 121,034.20-181,551.30-87,597.40

Finding the Fourth Proportional to 121,034.20, 181,551.30 and 87,597.40

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Solution

The fourth proportional to 121,034.20, 181,551.30 and 87,597.40 is: 131,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,034.20 : 181,551.30 = 87,597.40 : x
  2. Step 2: Convert to fraction form
    121,034.20/181,551.30 = 87,597.40/x
  3. Step 3: Cross multiply
    121,034.20x = 181,551.30 × 87,597.40
  4. Step 4: Simplify right side
    121,034.20x = 15,903,421,846.62
  5. Step 5: Solve for x
    x = 15,903,421,846.62/121,034.20
  6. Step 6: Final answer
    x = 131,396.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.