Home / 142,548.20-213,869.80-47,787.75

Finding the Fourth Proportional to 142,548.20, 213,869.80 and 47,787.75

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Solution

The fourth proportional to 142,548.20, 213,869.80 and 47,787.75 is: 71,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,548.20 : 213,869.80 = 47,787.75 : x
  2. Step 2: Convert to fraction form
    142,548.20/213,869.80 = 47,787.75/x
  3. Step 3: Cross multiply
    142,548.20x = 213,869.80 × 47,787.75
  4. Step 4: Simplify right side
    142,548.20x = 10,220,356,534.95
  5. Step 5: Solve for x
    x = 10,220,356,534.95/142,548.20
  6. Step 6: Final answer
    x = 71,697.55

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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.