Home / 125,281.72-172,891.02-68,692.42

Finding the Fourth Proportional to 125,281.72, 172,891.02 and 68,692.42

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Solution

The fourth proportional to 125,281.72, 172,891.02 and 68,692.42 is: 94,796.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,281.72 : 172,891.02 = 68,692.42 : x
  2. Step 2: Convert to fraction form
    125,281.72/172,891.02 = 68,692.42/x
  3. Step 3: Cross multiply
    125,281.72x = 172,891.02 × 68,692.42
  4. Step 4: Simplify right side
    125,281.72x = 11,876,302,560.07
  5. Step 5: Solve for x
    x = 11,876,302,560.07/125,281.72
  6. Step 6: Final answer
    x = 94,796.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.