Home / 100,521,142.56-138,725,102.19-75,697,533.45

Finding the Fourth Proportional to 100,521,142.56, 138,725,102.19 and 75,697,533.45

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Solution

The fourth proportional to 100,521,142.56, 138,725,102.19 and 75,697,533.45 is: 104,467,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,521,142.56 : 138,725,102.19 = 75,697,533.45 : x
  2. Step 2: Convert to fraction form
    100,521,142.56/138,725,102.19 = 75,697,533.45/x
  3. Step 3: Cross multiply
    100,521,142.56x = 138,725,102.19 × 75,697,533.45
  4. Step 4: Simplify right side
    100,521,142.56x = 10,501,148,063,382,194
  5. Step 5: Solve for x
    x = 10,501,148,063,382,194/100,521,142.56
  6. Step 6: Final answer
    x = 104,467,058.33

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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.