Home / 124,554.43-171,832.75-86,850.55

Finding the Fourth Proportional to 124,554.43, 171,832.75 and 86,850.55

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Solution

The fourth proportional to 124,554.43, 171,832.75 and 86,850.55 is: 119,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,554.43 : 171,832.75 = 86,850.55 : x
  2. Step 2: Convert to fraction form
    124,554.43/171,832.75 = 86,850.55/x
  3. Step 3: Cross multiply
    124,554.43x = 171,832.75 × 86,850.55
  4. Step 4: Simplify right side
    124,554.43x = 14,923,768,845.51
  5. Step 5: Solve for x
    x = 14,923,768,845.51/124,554.43
  6. Step 6: Final answer
    x = 119,817.25

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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.