Home / 141,355.20-212,032.92-66,420.38

Finding the Fourth Proportional to 141,355.20, 212,032.92 and 66,420.38

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Solution

The fourth proportional to 141,355.20, 212,032.92 and 66,420.38 is: 99,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,355.20 : 212,032.92 = 66,420.38 : x
  2. Step 2: Convert to fraction form
    141,355.20/212,032.92 = 66,420.38/x
  3. Step 3: Cross multiply
    141,355.20x = 212,032.92 × 66,420.38
  4. Step 4: Simplify right side
    141,355.20x = 14,083,307,118.91
  5. Step 5: Solve for x
    x = 14,083,307,118.91/141,355.20
  6. Step 6: Final answer
    x = 99,630.63

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1.5x scale

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.