Home / 121,014.20-181,521.30-61,830.20

Finding the Fourth Proportional to 121,014.20, 181,521.30 and 61,830.20

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Solution

The fourth proportional to 121,014.20, 181,521.30 and 61,830.20 is: 92,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014.20 : 181,521.30 = 61,830.20 : x
  2. Step 2: Convert to fraction form
    121,014.20/181,521.30 = 61,830.20/x
  3. Step 3: Cross multiply
    121,014.20x = 181,521.30 × 61,830.20
  4. Step 4: Simplify right side
    121,014.20x = 11,223,498,283.26
  5. Step 5: Solve for x
    x = 11,223,498,283.26/121,014.20
  6. Step 6: Final answer
    x = 92,745.30

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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.