Home / 188,133.15-282,242.82-81,535.01

Finding the Fourth Proportional to 188,133.15, 282,242.82 and 81,535.01

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Solution

The fourth proportional to 188,133.15, 282,242.82 and 81,535.01 is: 122,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,133.15 : 282,242.82 = 81,535.01 : x
  2. Step 2: Convert to fraction form
    188,133.15/282,242.82 = 81,535.01/x
  3. Step 3: Cross multiply
    188,133.15x = 282,242.82 × 81,535.01
  4. Step 4: Simplify right side
    188,133.15x = 23,012,671,151.13
  5. Step 5: Solve for x
    x = 23,012,671,151.13/188,133.15
  6. Step 6: Final answer
    x = 122,321.19

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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.