Home / 168,070.51-231,937.31-91,589.58

Finding the Fourth Proportional to 168,070.51, 231,937.31 and 91,589.58

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Solution

The fourth proportional to 168,070.51, 231,937.31 and 91,589.58 is: 126,393.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,070.51 : 231,937.31 = 91,589.58 : x
  2. Step 2: Convert to fraction form
    168,070.51/231,937.31 = 91,589.58/x
  3. Step 3: Cross multiply
    168,070.51x = 231,937.31 × 91,589.58
  4. Step 4: Simplify right side
    168,070.51x = 21,243,041,038.20
  5. Step 5: Solve for x
    x = 21,243,041,038.20/168,070.51
  6. Step 6: Final answer
    x = 126,393.62

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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.