Home / 138,810.41-208,219.87-47,624.53

Finding the Fourth Proportional to 138,810.41, 208,219.87 and 47,624.53

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Solution

The fourth proportional to 138,810.41, 208,219.87 and 47,624.53 is: 71,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,810.41 : 208,219.87 = 47,624.53 : x
  2. Step 2: Convert to fraction form
    138,810.41/208,219.87 = 47,624.53/x
  3. Step 3: Cross multiply
    138,810.41x = 208,219.87 × 47,624.53
  4. Step 4: Simplify right side
    138,810.41x = 9,916,373,692.53
  5. Step 5: Solve for x
    x = 9,916,373,692.53/138,810.41
  6. Step 6: Final answer
    x = 71,438.26

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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.