Home / 141,969.24-195,914.52-78,312.96

Finding the Fourth Proportional to 141,969.24, 195,914.52 and 78,312.96

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Solution

The fourth proportional to 141,969.24, 195,914.52 and 78,312.96 is: 108,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,969.24 : 195,914.52 = 78,312.96 : x
  2. Step 2: Convert to fraction form
    141,969.24/195,914.52 = 78,312.96/x
  3. Step 3: Cross multiply
    141,969.24x = 195,914.52 × 78,312.96
  4. Step 4: Simplify right side
    141,969.24x = 15,342,645,968.18
  5. Step 5: Solve for x
    x = 15,342,645,968.18/141,969.24
  6. Step 6: Final answer
    x = 108,070.21

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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.