Home / 141,638.40-212,408.64-62,807.76

Finding the Fourth Proportional to 141,638.40, 212,408.64 and 62,807.76

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Solution

The fourth proportional to 141,638.40, 212,408.64 and 62,807.76 is: 94,189.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,638.40 : 212,408.64 = 62,807.76 : x
  2. Step 2: Convert to fraction form
    141,638.40/212,408.64 = 62,807.76/x
  3. Step 3: Cross multiply
    141,638.40x = 212,408.64 × 62,807.76
  4. Step 4: Simplify right side
    141,638.40x = 13,340,910,883.05
  5. Step 5: Solve for x
    x = 13,340,910,883.05/141,638.40
  6. Step 6: Final answer
    x = 94,189.93

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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.