Home / 120,362.47-180,529.11-61,240.57

Finding the Fourth Proportional to 120,362.47, 180,529.11 and 61,240.57

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Solution

The fourth proportional to 120,362.47, 180,529.11 and 61,240.57 is: 91,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,362.47 : 180,529.11 = 61,240.57 : x
  2. Step 2: Convert to fraction form
    120,362.47/180,529.11 = 61,240.57/x
  3. Step 3: Cross multiply
    120,362.47x = 180,529.11 × 61,240.57
  4. Step 4: Simplify right side
    120,362.47x = 11,055,705,597.99
  5. Step 5: Solve for x
    x = 11,055,705,597.99/120,362.47
  6. Step 6: Final answer
    x = 91,853.43

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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.