Home / 142,386.20-213,563.10-37,215.80

Finding the Fourth Proportional to 142,386.20, 213,563.10 and 37,215.80

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Solution

The fourth proportional to 142,386.20, 213,563.10 and 37,215.80 is: 55,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,386.20 : 213,563.10 = 37,215.80 : x
  2. Step 2: Convert to fraction form
    142,386.20/213,563.10 = 37,215.80/x
  3. Step 3: Cross multiply
    142,386.20x = 213,563.10 × 37,215.80
  4. Step 4: Simplify right side
    142,386.20x = 7,947,921,616.98
  5. Step 5: Solve for x
    x = 7,947,921,616.98/142,386.20
  6. Step 6: Final answer
    x = 55,819.47

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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.