Home / 188,130.15-282,238.32-81,532.01

Finding the Fourth Proportional to 188,130.15, 282,238.32 and 81,532.01

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Solution

The fourth proportional to 188,130.15, 282,238.32 and 81,532.01 is: 122,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,130.15 : 282,238.32 = 81,532.01 : x
  2. Step 2: Convert to fraction form
    188,130.15/282,238.32 = 81,532.01/x
  3. Step 3: Cross multiply
    188,130.15x = 282,238.32 × 81,532.01
  4. Step 4: Simplify right side
    188,130.15x = 23,011,456,117.43
  5. Step 5: Solve for x
    x = 23,011,456,117.43/188,130.15
  6. Step 6: Final answer
    x = 122,316.68

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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.