Home / 141,976.48-195,928.32-78,314.28

Finding the Fourth Proportional to 141,976.48, 195,928.32 and 78,314.28

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Solution

The fourth proportional to 141,976.48, 195,928.32 and 78,314.28 is: 108,074.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,976.48 : 195,928.32 = 78,314.28 : x
  2. Step 2: Convert to fraction form
    141,976.48/195,928.32 = 78,314.28/x
  3. Step 3: Cross multiply
    141,976.48x = 195,928.32 × 78,314.28
  4. Step 4: Simplify right side
    141,976.48x = 15,343,985,312.41
  5. Step 5: Solve for x
    x = 15,343,985,312.41/141,976.48
  6. Step 6: Final answer
    x = 108,074.14

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1.5x scale

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.