Home / 160,781.36-221,877.02-89,161.56

Finding the Fourth Proportional to 160,781.36, 221,877.02 and 89,161.56

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Solution

The fourth proportional to 160,781.36, 221,877.02 and 89,161.56 is: 123,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,781.36 : 221,877.02 = 89,161.56 : x
  2. Step 2: Convert to fraction form
    160,781.36/221,877.02 = 89,161.56/x
  3. Step 3: Cross multiply
    160,781.36x = 221,877.02 × 89,161.56
  4. Step 4: Simplify right side
    160,781.36x = 19,782,901,454.26
  5. Step 5: Solve for x
    x = 19,782,901,454.26/160,781.36
  6. Step 6: Final answer
    x = 123,042.26

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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.