Home / 141,698.25-195,543.63-78,035.94

Finding the Fourth Proportional to 141,698.25, 195,543.63 and 78,035.94

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Solution

The fourth proportional to 141,698.25, 195,543.63 and 78,035.94 is: 107,689.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,698.25 : 195,543.63 = 78,035.94 : x
  2. Step 2: Convert to fraction form
    141,698.25/195,543.63 = 78,035.94/x
  3. Step 3: Cross multiply
    141,698.25x = 195,543.63 × 78,035.94
  4. Step 4: Simplify right side
    141,698.25x = 15,259,430,978.06
  5. Step 5: Solve for x
    x = 15,259,430,978.06/141,698.25
  6. Step 6: Final answer
    x = 107,689.62

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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.