Home / 102,199,102.45-153,298,660.34-81,632,529.54

Finding the Fourth Proportional to 102,199,102.45, 153,298,660.34 and 81,632,529.54

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Solution

The fourth proportional to 102,199,102.45, 153,298,660.34 and 81,632,529.54 is: 122,448,799.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,199,102.45 : 153,298,660.34 = 81,632,529.54 : x
  2. Step 2: Convert to fraction form
    102,199,102.45/153,298,660.34 = 81,632,529.54/x
  3. Step 3: Cross multiply
    102,199,102.45x = 153,298,660.34 × 81,632,529.54
  4. Step 4: Simplify right side
    102,199,102.45x = 12,514,157,418,851,558
  5. Step 5: Solve for x
    x = 12,514,157,418,851,558/102,199,102.45
  6. Step 6: Final answer
    x = 122,448,799.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.