Home / 122,152.05-168,616.49-118,781.24

Finding the Fourth Proportional to 122,152.05, 168,616.49 and 118,781.24

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Solution

The fourth proportional to 122,152.05, 168,616.49 and 118,781.24 is: 163,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,152.05 : 168,616.49 = 118,781.24 : x
  2. Step 2: Convert to fraction form
    122,152.05/168,616.49 = 118,781.24/x
  3. Step 3: Cross multiply
    122,152.05x = 168,616.49 × 118,781.24
  4. Step 4: Simplify right side
    122,152.05x = 20,028,474,329.66
  5. Step 5: Solve for x
    x = 20,028,474,329.66/122,152.05
  6. Step 6: Final answer
    x = 163,963.47

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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.