Home / 123,623.10-185,386.44-42,554.79

Finding the Fourth Proportional to 123,623.10, 185,386.44 and 42,554.79

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Solution

The fourth proportional to 123,623.10, 185,386.44 and 42,554.79 is: 63,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,623.10 : 185,386.44 = 42,554.79 : x
  2. Step 2: Convert to fraction form
    123,623.10/185,386.44 = 42,554.79/x
  3. Step 3: Cross multiply
    123,623.10x = 185,386.44 × 42,554.79
  4. Step 4: Simplify right side
    123,623.10x = 7,889,081,023.05
  5. Step 5: Solve for x
    x = 7,889,081,023.05/123,623.10
  6. Step 6: Final answer
    x = 63,815.59

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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.