Home / 125,280.28-172,886.70-68,692.60

Finding the Fourth Proportional to 125,280.28, 172,886.70 and 68,692.60

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Solution

The fourth proportional to 125,280.28, 172,886.70 and 68,692.60 is: 94,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280.28 : 172,886.70 = 68,692.60 : x
  2. Step 2: Convert to fraction form
    125,280.28/172,886.70 = 68,692.60/x
  3. Step 3: Cross multiply
    125,280.28x = 172,886.70 × 68,692.60
  4. Step 4: Simplify right side
    125,280.28x = 11,876,036,928.42
  5. Step 5: Solve for x
    x = 11,876,036,928.42/125,280.28
  6. Step 6: Final answer
    x = 94,795.74

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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.