Home / 141,785.64-195,657.12-78,113.16

Finding the Fourth Proportional to 141,785.64, 195,657.12 and 78,113.16

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Solution

The fourth proportional to 141,785.64, 195,657.12 and 78,113.16 is: 107,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,785.64 : 195,657.12 = 78,113.16 : x
  2. Step 2: Convert to fraction form
    141,785.64/195,657.12 = 78,113.16/x
  3. Step 3: Cross multiply
    141,785.64x = 195,657.12 × 78,113.16
  4. Step 4: Simplify right side
    141,785.64x = 15,283,395,919.70
  5. Step 5: Solve for x
    x = 15,283,395,919.70/141,785.64
  6. Step 6: Final answer
    x = 107,792.27

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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.