Home / 141,927.67-212,650.51-85,649.53

Finding the Fourth Proportional to 141,927.67, 212,650.51 and 85,649.53

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Solution

The fourth proportional to 141,927.67, 212,650.51 and 85,649.53 is: 128,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,927.67 : 212,650.51 = 85,649.53 : x
  2. Step 2: Convert to fraction form
    141,927.67/212,650.51 = 85,649.53/x
  3. Step 3: Cross multiply
    141,927.67x = 212,650.51 × 85,649.53
  4. Step 4: Simplify right side
    141,927.67x = 18,213,416,235.76
  5. Step 5: Solve for x
    x = 18,213,416,235.76/141,927.67
  6. Step 6: Final answer
    x = 128,328.86

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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.