Home / 142,713.40-196,757.76-122,784.34

Finding the Fourth Proportional to 142,713.40, 196,757.76 and 122,784.34

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Solution

The fourth proportional to 142,713.40, 196,757.76 and 122,784.34 is: 169,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.40 : 196,757.76 = 122,784.34 : x
  2. Step 2: Convert to fraction form
    142,713.40/196,757.76 = 122,784.34/x
  3. Step 3: Cross multiply
    142,713.40x = 196,757.76 × 122,784.34
  4. Step 4: Simplify right side
    142,713.40x = 24,158,771,701.48
  5. Step 5: Solve for x
    x = 24,158,771,701.48/142,713.40
  6. Step 6: Final answer
    x = 169,281.73

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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.