Home / 142,712.20-214,070.70-54,007.48

Finding the Fourth Proportional to 142,712.20, 214,070.70 and 54,007.48

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Solution

The fourth proportional to 142,712.20, 214,070.70 and 54,007.48 is: 81,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.20 : 214,070.70 = 54,007.48 : x
  2. Step 2: Convert to fraction form
    142,712.20/214,070.70 = 54,007.48/x
  3. Step 3: Cross multiply
    142,712.20x = 214,070.70 × 54,007.48
  4. Step 4: Simplify right side
    142,712.20x = 11,561,419,048.84
  5. Step 5: Solve for x
    x = 11,561,419,048.84/142,712.20
  6. Step 6: Final answer
    x = 81,012.13

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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.