Home / 157,669.65-217,584.72-86,051.25

Finding the Fourth Proportional to 157,669.65, 217,584.72 and 86,051.25

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Solution

The fourth proportional to 157,669.65, 217,584.72 and 86,051.25 is: 118,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,669.65 : 217,584.72 = 86,051.25 : x
  2. Step 2: Convert to fraction form
    157,669.65/217,584.72 = 86,051.25/x
  3. Step 3: Cross multiply
    157,669.65x = 217,584.72 × 86,051.25
  4. Step 4: Simplify right side
    157,669.65x = 18,723,437,136.90
  5. Step 5: Solve for x
    x = 18,723,437,136.90/157,669.65
  6. Step 6: Final answer
    x = 118,751.05

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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.