Home / 123,357.16-185,042.58-39,111.36

Finding the Fourth Proportional to 123,357.16, 185,042.58 and 39,111.36

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Solution

The fourth proportional to 123,357.16, 185,042.58 and 39,111.36 is: 58,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,357.16 : 185,042.58 = 39,111.36 : x
  2. Step 2: Convert to fraction form
    123,357.16/185,042.58 = 39,111.36/x
  3. Step 3: Cross multiply
    123,357.16x = 185,042.58 × 39,111.36
  4. Step 4: Simplify right side
    123,357.16x = 7,237,266,961.71
  5. Step 5: Solve for x
    x = 7,237,266,961.71/123,357.16
  6. Step 6: Final answer
    x = 58,669.21

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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.