Home / 113,487.60-170,231.40-38,692.20

Finding the Fourth Proportional to 113,487.60, 170,231.40 and 38,692.20

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Solution

The fourth proportional to 113,487.60, 170,231.40 and 38,692.20 is: 58,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,487.60 : 170,231.40 = 38,692.20 : x
  2. Step 2: Convert to fraction form
    113,487.60/170,231.40 = 38,692.20/x
  3. Step 3: Cross multiply
    113,487.60x = 170,231.40 × 38,692.20
  4. Step 4: Simplify right side
    113,487.60x = 6,586,627,375.08
  5. Step 5: Solve for x
    x = 6,586,627,375.08/113,487.60
  6. Step 6: Final answer
    x = 58,038.30

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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.