Home / 149,730.12-206,629.56-81,746.31

Finding the Fourth Proportional to 149,730.12, 206,629.56 and 81,746.31

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Solution

The fourth proportional to 149,730.12, 206,629.56 and 81,746.31 is: 112,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,730.12 : 206,629.56 = 81,746.31 : x
  2. Step 2: Convert to fraction form
    149,730.12/206,629.56 = 81,746.31/x
  3. Step 3: Cross multiply
    149,730.12x = 206,629.56 × 81,746.31
  4. Step 4: Simplify right side
    149,730.12x = 16,891,204,066.92
  5. Step 5: Solve for x
    x = 16,891,204,066.92/149,730.12
  6. Step 6: Final answer
    x = 112,811.00

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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.