Home / 141,904.14-195,817.70-78,240.57

Finding the Fourth Proportional to 141,904.14, 195,817.70 and 78,240.57

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Solution

The fourth proportional to 141,904.14, 195,817.70 and 78,240.57 is: 107,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,904.14 : 195,817.70 = 78,240.57 : x
  2. Step 2: Convert to fraction form
    141,904.14/195,817.70 = 78,240.57/x
  3. Step 3: Cross multiply
    141,904.14x = 195,817.70 × 78,240.57
  4. Step 4: Simplify right side
    141,904.14x = 15,320,887,925.37
  5. Step 5: Solve for x
    x = 15,320,887,925.37/141,904.14
  6. Step 6: Final answer
    x = 107,966.46

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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.