Home / 157,883.09-217,876.11-86,261.57

Finding the Fourth Proportional to 157,883.09, 217,876.11 and 86,261.57

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Solution

The fourth proportional to 157,883.09, 217,876.11 and 86,261.57 is: 119,039.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,883.09 : 217,876.11 = 86,261.57 : x
  2. Step 2: Convert to fraction form
    157,883.09/217,876.11 = 86,261.57/x
  3. Step 3: Cross multiply
    157,883.09x = 217,876.11 × 86,261.57
  4. Step 4: Simplify right side
    157,883.09x = 18,794,334,224.71
  5. Step 5: Solve for x
    x = 18,794,334,224.71/157,883.09
  6. Step 6: Final answer
    x = 119,039.57

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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.