Home / 141,856.42-195,762.80-78,194.26

Finding the Fourth Proportional to 141,856.42, 195,762.80 and 78,194.26

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Solution

The fourth proportional to 141,856.42, 195,762.80 and 78,194.26 is: 107,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.42 : 195,762.80 = 78,194.26 : x
  2. Step 2: Convert to fraction form
    141,856.42/195,762.80 = 78,194.26/x
  3. Step 3: Cross multiply
    141,856.42x = 195,762.80 × 78,194.26
  4. Step 4: Simplify right side
    141,856.42x = 15,307,527,281.53
  5. Step 5: Solve for x
    x = 15,307,527,281.53/141,856.42
  6. Step 6: Final answer
    x = 107,908.60

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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.