Home / 103,090.44-142,268.28-98,366.52

Finding the Fourth Proportional to 103,090.44, 142,268.28 and 98,366.52

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Solution

The fourth proportional to 103,090.44, 142,268.28 and 98,366.52 is: 135,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,090.44 : 142,268.28 = 98,366.52 : x
  2. Step 2: Convert to fraction form
    103,090.44/142,268.28 = 98,366.52/x
  3. Step 3: Cross multiply
    103,090.44x = 142,268.28 × 98,366.52
  4. Step 4: Simplify right side
    103,090.44x = 13,994,435,609.99
  5. Step 5: Solve for x
    x = 13,994,435,609.99/103,090.44
  6. Step 6: Final answer
    x = 135,749.11

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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.