Home / 142,432.22-196,548.48-77,888.66

Finding the Fourth Proportional to 142,432.22, 196,548.48 and 77,888.66

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Solution

The fourth proportional to 142,432.22, 196,548.48 and 77,888.66 is: 107,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,432.22 : 196,548.48 = 77,888.66 : x
  2. Step 2: Convert to fraction form
    142,432.22/196,548.48 = 77,888.66/x
  3. Step 3: Cross multiply
    142,432.22x = 196,548.48 × 77,888.66
  4. Step 4: Simplify right side
    142,432.22x = 15,308,897,732.24
  5. Step 5: Solve for x
    x = 15,308,897,732.24/142,432.22
  6. Step 6: Final answer
    x = 107,481.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.