Home / 141,699.45-195,543.95-78,035.88

Finding the Fourth Proportional to 141,699.45, 195,543.95 and 78,035.88

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Solution

The fourth proportional to 141,699.45, 195,543.95 and 78,035.88 is: 107,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,699.45 : 195,543.95 = 78,035.88 : x
  2. Step 2: Convert to fraction form
    141,699.45/195,543.95 = 78,035.88/x
  3. Step 3: Cross multiply
    141,699.45x = 195,543.95 × 78,035.88
  4. Step 4: Simplify right side
    141,699.45x = 15,259,443,826.75
  5. Step 5: Solve for x
    x = 15,259,443,826.75/141,699.45
  6. Step 6: Final answer
    x = 107,688.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.