Home / 141,699.38-195,543.95-78,035.81

Finding the Fourth Proportional to 141,699.38, 195,543.95 and 78,035.81

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Solution

The fourth proportional to 141,699.38, 195,543.95 and 78,035.81 is: 107,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,699.38 : 195,543.95 = 78,035.81 : x
  2. Step 2: Convert to fraction form
    141,699.38/195,543.95 = 78,035.81/x
  3. Step 3: Cross multiply
    141,699.38x = 195,543.95 × 78,035.81
  4. Step 4: Simplify right side
    141,699.38x = 15,259,430,627.53
  5. Step 5: Solve for x
    x = 15,259,430,627.53/141,699.38
  6. Step 6: Final answer
    x = 107,688.76

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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.