Home / 141,898.47-195,811.32-81,455.91

Finding the Fourth Proportional to 141,898.47, 195,811.32 and 81,455.91

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Solution

The fourth proportional to 141,898.47, 195,811.32 and 81,455.91 is: 112,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,898.47 : 195,811.32 = 81,455.91 : x
  2. Step 2: Convert to fraction form
    141,898.47/195,811.32 = 81,455.91/x
  3. Step 3: Cross multiply
    141,898.47x = 195,811.32 × 81,455.91
  4. Step 4: Simplify right side
    141,898.47x = 15,949,989,258.90
  5. Step 5: Solve for x
    x = 15,949,989,258.90/141,898.47
  6. Step 6: Final answer
    x = 112,404.24

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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.