Home / 157,877.03-217,867.76-86,255.51

Finding the Fourth Proportional to 157,877.03, 217,867.76 and 86,255.51

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Solution

The fourth proportional to 157,877.03, 217,867.76 and 86,255.51 is: 119,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,877.03 : 217,867.76 = 86,255.51 : x
  2. Step 2: Convert to fraction form
    157,877.03/217,867.76 = 86,255.51/x
  3. Step 3: Cross multiply
    157,877.03x = 217,867.76 × 86,255.51
  4. Step 4: Simplify right side
    157,877.03x = 18,792,294,320.08
  5. Step 5: Solve for x
    x = 18,792,294,320.08/157,877.03
  6. Step 6: Final answer
    x = 119,031.21

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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.