Home / 157,736.16-217,665.77-86,116.03

Finding the Fourth Proportional to 157,736.16, 217,665.77 and 86,116.03

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Solution

The fourth proportional to 157,736.16, 217,665.77 and 86,116.03 is: 118,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736.16 : 217,665.77 = 86,116.03 : x
  2. Step 2: Convert to fraction form
    157,736.16/217,665.77 = 86,116.03/x
  3. Step 3: Cross multiply
    157,736.16x = 217,665.77 × 86,116.03
  4. Step 4: Simplify right side
    157,736.16x = 18,744,511,979.29
  5. Step 5: Solve for x
    x = 18,744,511,979.29/157,736.16
  6. Step 6: Final answer
    x = 118,834.59

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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.