Home / 108,929.88-163,534.75-83,985.77

Finding the Fourth Proportional to 108,929.88, 163,534.75 and 83,985.77

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Solution

The fourth proportional to 108,929.88, 163,534.75 and 83,985.77 is: 126,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,929.88 : 163,534.75 = 83,985.77 : x
  2. Step 2: Convert to fraction form
    108,929.88/163,534.75 = 83,985.77/x
  3. Step 3: Cross multiply
    108,929.88x = 163,534.75 × 83,985.77
  4. Step 4: Simplify right side
    108,929.88x = 13,734,591,900.51
  5. Step 5: Solve for x
    x = 13,734,591,900.51/108,929.88
  6. Step 6: Final answer
    x = 126,086.54

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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.