Home / 98,118.63-135,385.20-57,845.03

Finding the Fourth Proportional to 98,118.63, 135,385.20 and 57,845.03

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Solution

The fourth proportional to 98,118.63, 135,385.20 and 57,845.03 is: 79,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,118.63 : 135,385.20 = 57,845.03 : x
  2. Step 2: Convert to fraction form
    98,118.63/135,385.20 = 57,845.03/x
  3. Step 3: Cross multiply
    98,118.63x = 135,385.20 × 57,845.03
  4. Step 4: Simplify right side
    98,118.63x = 7,831,360,278.63
  5. Step 5: Solve for x
    x = 7,831,360,278.63/98,118.63
  6. Step 6: Final answer
    x = 79,815.22

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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.