Home / 142,236.90-213,385.05-47,463.30

Finding the Fourth Proportional to 142,236.90, 213,385.05 and 47,463.30

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Solution

The fourth proportional to 142,236.90, 213,385.05 and 47,463.30 is: 71,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,236.90 : 213,385.05 = 47,463.30 : x
  2. Step 2: Convert to fraction form
    142,236.90/213,385.05 = 47,463.30/x
  3. Step 3: Cross multiply
    142,236.90x = 213,385.05 × 47,463.30
  4. Step 4: Simplify right side
    142,236.90x = 10,127,958,643.67
  5. Step 5: Solve for x
    x = 10,127,958,643.67/142,236.90
  6. Step 6: Final answer
    x = 71,204.86

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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.