Home / 141,973.20-212,765.40-115,729.20

Finding the Fourth Proportional to 141,973.20, 212,765.40 and 115,729.20

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Solution

The fourth proportional to 141,973.20, 212,765.40 and 115,729.20 is: 173,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,973.20 : 212,765.40 = 115,729.20 : x
  2. Step 2: Convert to fraction form
    141,973.20/212,765.40 = 115,729.20/x
  3. Step 3: Cross multiply
    141,973.20x = 212,765.40 × 115,729.20
  4. Step 4: Simplify right side
    141,973.20x = 24,623,169,529.68
  5. Step 5: Solve for x
    x = 24,623,169,529.68/141,973.20
  6. Step 6: Final answer
    x = 173,435.34

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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.