Home / 120,985.62-181,515.35-61,862.82

Finding the Fourth Proportional to 120,985.62, 181,515.35 and 61,862.82

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Solution

The fourth proportional to 120,985.62, 181,515.35 and 61,862.82 is: 92,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,985.62 : 181,515.35 = 61,862.82 : x
  2. Step 2: Convert to fraction form
    120,985.62/181,515.35 = 61,862.82/x
  3. Step 3: Cross multiply
    120,985.62x = 181,515.35 × 61,862.82
  4. Step 4: Simplify right side
    120,985.62x = 11,229,051,424.29
  5. Step 5: Solve for x
    x = 11,229,051,424.29/120,985.62
  6. Step 6: Final answer
    x = 92,813.11

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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.