Home / 100,521,140.70-138,725,099.61-75,697,531.59

Finding the Fourth Proportional to 100,521,140.70, 138,725,099.61 and 75,697,531.59

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Solution

The fourth proportional to 100,521,140.70, 138,725,099.61 and 75,697,531.59 is: 104,467,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,521,140.70 : 138,725,099.61 = 75,697,531.59 : x
  2. Step 2: Convert to fraction form
    100,521,140.70/138,725,099.61 = 75,697,531.59/x
  3. Step 3: Cross multiply
    100,521,140.70x = 138,725,099.61 × 75,697,531.59
  4. Step 4: Simplify right side
    100,521,140.70x = 10,501,147,610,053,874
  5. Step 5: Solve for x
    x = 10,501,147,610,053,874/100,521,140.70
  6. Step 6: Final answer
    x = 104,467,055.75

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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.