Home / 100,301.84-138,460.64-70,205.33

Finding the Fourth Proportional to 100,301.84, 138,460.64 and 70,205.33

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Solution

The fourth proportional to 100,301.84, 138,460.64 and 70,205.33 is: 96,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,301.84 : 138,460.64 = 70,205.33 : x
  2. Step 2: Convert to fraction form
    100,301.84/138,460.64 = 70,205.33/x
  3. Step 3: Cross multiply
    100,301.84x = 138,460.64 × 70,205.33
  4. Step 4: Simplify right side
    100,301.84x = 9,720,675,313.24
  5. Step 5: Solve for x
    x = 9,720,675,313.24/100,301.84
  6. Step 6: Final answer
    x = 96,914.22

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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.