Home / 123,181.08-184,722.75-42,107.91

Finding the Fourth Proportional to 123,181.08, 184,722.75 and 42,107.91

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Solution

The fourth proportional to 123,181.08, 184,722.75 and 42,107.91 is: 63,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,181.08 : 184,722.75 = 42,107.91 : x
  2. Step 2: Convert to fraction form
    123,181.08/184,722.75 = 42,107.91/x
  3. Step 3: Cross multiply
    123,181.08x = 184,722.75 × 42,107.91
  4. Step 4: Simplify right side
    123,181.08x = 7,778,288,931.95
  5. Step 5: Solve for x
    x = 7,778,288,931.95/123,181.08
  6. Step 6: Final answer
    x = 63,145.16

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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.