Home / 120,989.49-181,521.16-61,866.69

Finding the Fourth Proportional to 120,989.49, 181,521.16 and 61,866.69

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Solution

The fourth proportional to 120,989.49, 181,521.16 and 61,866.69 is: 92,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,989.49 : 181,521.16 = 61,866.69 : x
  2. Step 2: Convert to fraction form
    120,989.49/181,521.16 = 61,866.69/x
  3. Step 3: Cross multiply
    120,989.49x = 181,521.16 × 61,866.69
  4. Step 4: Simplify right side
    120,989.49x = 11,230,113,179.49
  5. Step 5: Solve for x
    x = 11,230,113,179.49/120,989.49
  6. Step 6: Final answer
    x = 92,818.91

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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.