Home / 188,132.15-282,241.32-81,534.01

Finding the Fourth Proportional to 188,132.15, 282,241.32 and 81,534.01

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Solution

The fourth proportional to 188,132.15, 282,241.32 and 81,534.01 is: 122,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,132.15 : 282,241.32 = 81,534.01 : x
  2. Step 2: Convert to fraction form
    188,132.15/282,241.32 = 81,534.01/x
  3. Step 3: Cross multiply
    188,132.15x = 282,241.32 × 81,534.01
  4. Step 4: Simplify right side
    188,132.15x = 23,012,266,607.29
  5. Step 5: Solve for x
    x = 23,012,266,607.29/188,132.15
  6. Step 6: Final answer
    x = 122,319.69

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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.