Home / 142,203.30-213,233.48-47,400.28

Finding the Fourth Proportional to 142,203.30, 213,233.48 and 47,400.28

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Solution

The fourth proportional to 142,203.30, 213,233.48 and 47,400.28 is: 71,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,203.30 : 213,233.48 = 47,400.28 : x
  2. Step 2: Convert to fraction form
    142,203.30/213,233.48 = 47,400.28/x
  3. Step 3: Cross multiply
    142,203.30x = 213,233.48 × 47,400.28
  4. Step 4: Simplify right side
    142,203.30x = 10,107,326,657.37
  5. Step 5: Solve for x
    x = 10,107,326,657.37/142,203.30
  6. Step 6: Final answer
    x = 71,076.60

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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.