Home / 122,088.50-183,964.66-100,388

Finding the Fourth Proportional to 122,088.50, 183,964.66 and 100,388

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Solution

The fourth proportional to 122,088.50, 183,964.66 and 100,388 is: 151,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,088.50 : 183,964.66 = 100,388 : x
  2. Step 2: Convert to fraction form
    122,088.50/183,964.66 = 100,388/x
  3. Step 3: Cross multiply
    122,088.50x = 183,964.66 × 100,388
  4. Step 4: Simplify right side
    122,088.50x = 18,467,844,288.08
  5. Step 5: Solve for x
    x = 18,467,844,288.08/122,088.50
  6. Step 6: Final answer
    x = 151,266.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.