Home / 188,127.32-282,234.08-81,529.16

Finding the Fourth Proportional to 188,127.32, 282,234.08 and 81,529.16

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Solution

The fourth proportional to 188,127.32, 282,234.08 and 81,529.16 is: 122,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,127.32 : 282,234.08 = 81,529.16 : x
  2. Step 2: Convert to fraction form
    188,127.32/282,234.08 = 81,529.16/x
  3. Step 3: Cross multiply
    188,127.32x = 282,234.08 × 81,529.16
  4. Step 4: Simplify right side
    188,127.32x = 23,010,307,514.16
  5. Step 5: Solve for x
    x = 23,010,307,514.16/188,127.32
  6. Step 6: Final answer
    x = 122,312.42

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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.