Home / 102,031.07-140,796.67-56,707.54

Finding the Fourth Proportional to 102,031.07, 140,796.67 and 56,707.54

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Solution

The fourth proportional to 102,031.07, 140,796.67 and 56,707.54 is: 78,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,031.07 : 140,796.67 = 56,707.54 : x
  2. Step 2: Convert to fraction form
    102,031.07/140,796.67 = 56,707.54/x
  3. Step 3: Cross multiply
    102,031.07x = 140,796.67 × 56,707.54
  4. Step 4: Simplify right side
    102,031.07x = 7,984,233,120.69
  5. Step 5: Solve for x
    x = 7,984,233,120.69/102,031.07
  6. Step 6: Final answer
    x = 78,252.96

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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.