Home / 142,046.64-212,945.15-57,877.58

Finding the Fourth Proportional to 142,046.64, 212,945.15 and 57,877.58

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Solution

The fourth proportional to 142,046.64, 212,945.15 and 57,877.58 is: 86,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,046.64 : 212,945.15 = 57,877.58 : x
  2. Step 2: Convert to fraction form
    142,046.64/212,945.15 = 57,877.58/x
  3. Step 3: Cross multiply
    142,046.64x = 212,945.15 × 57,877.58
  4. Step 4: Simplify right side
    142,046.64x = 12,324,749,954.74
  5. Step 5: Solve for x
    x = 12,324,749,954.74/142,046.64
  6. Step 6: Final answer
    x = 86,765.52

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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.