Home / 157,715.44-217,647.92-86,097.04

Finding the Fourth Proportional to 157,715.44, 217,647.92 and 86,097.04

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Solution

The fourth proportional to 157,715.44, 217,647.92 and 86,097.04 is: 118,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,715.44 : 217,647.92 = 86,097.04 : x
  2. Step 2: Convert to fraction form
    157,715.44/217,647.92 = 86,097.04/x
  3. Step 3: Cross multiply
    157,715.44x = 217,647.92 × 86,097.04
  4. Step 4: Simplify right side
    157,715.44x = 18,738,841,674.16
  5. Step 5: Solve for x
    x = 18,738,841,674.16/157,715.44
  6. Step 6: Final answer
    x = 118,814.25

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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.