Home / 141,715.58-195,558.66-78,053.40

Finding the Fourth Proportional to 141,715.58, 195,558.66 and 78,053.40

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Solution

The fourth proportional to 141,715.58, 195,558.66 and 78,053.40 is: 107,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,715.58 : 195,558.66 = 78,053.40 : x
  2. Step 2: Convert to fraction form
    141,715.58/195,558.66 = 78,053.40/x
  3. Step 3: Cross multiply
    141,715.58x = 195,558.66 × 78,053.40
  4. Step 4: Simplify right side
    141,715.58x = 15,264,018,312.44
  5. Step 5: Solve for x
    x = 15,264,018,312.44/141,715.58
  6. Step 6: Final answer
    x = 107,708.83

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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.