Home / 157,905.27-217,906.65-86,283.75

Finding the Fourth Proportional to 157,905.27, 217,906.65 and 86,283.75

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Solution

The fourth proportional to 157,905.27, 217,906.65 and 86,283.75 is: 119,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,905.27 : 217,906.65 = 86,283.75 : x
  2. Step 2: Convert to fraction form
    157,905.27/217,906.65 = 86,283.75/x
  3. Step 3: Cross multiply
    157,905.27x = 217,906.65 × 86,283.75
  4. Step 4: Simplify right side
    157,905.27x = 18,801,802,911.94
  5. Step 5: Solve for x
    x = 18,801,802,911.94/157,905.27
  6. Step 6: Final answer
    x = 119,070.14

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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.