Home / 149,846.48-206,792.17-81,866.32

Finding the Fourth Proportional to 149,846.48, 206,792.17 and 81,866.32

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Solution

The fourth proportional to 149,846.48, 206,792.17 and 81,866.32 is: 112,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,846.48 : 206,792.17 = 81,866.32 : x
  2. Step 2: Convert to fraction form
    149,846.48/206,792.17 = 81,866.32/x
  3. Step 3: Cross multiply
    149,846.48x = 206,792.17 × 81,866.32
  4. Step 4: Simplify right side
    149,846.48x = 16,929,313,962.71
  5. Step 5: Solve for x
    x = 16,929,313,962.71/149,846.48
  6. Step 6: Final answer
    x = 112,977.72

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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.