Home / 141,930.61-212,896.75-42,091.63

Finding the Fourth Proportional to 141,930.61, 212,896.75 and 42,091.63

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Solution

The fourth proportional to 141,930.61, 212,896.75 and 42,091.63 is: 63,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,930.61 : 212,896.75 = 42,091.63 : x
  2. Step 2: Convert to fraction form
    141,930.61/212,896.75 = 42,091.63/x
  3. Step 3: Cross multiply
    141,930.61x = 212,896.75 × 42,091.63
  4. Step 4: Simplify right side
    141,930.61x = 8,961,169,954.26
  5. Step 5: Solve for x
    x = 8,961,169,954.26/141,930.61
  6. Step 6: Final answer
    x = 63,137.69

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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.