Home / 123,320.34-184,985.65-39,078.64

Finding the Fourth Proportional to 123,320.34, 184,985.65 and 39,078.64

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Solution

The fourth proportional to 123,320.34, 184,985.65 and 39,078.64 is: 58,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,320.34 : 184,985.65 = 39,078.64 : x
  2. Step 2: Convert to fraction form
    123,320.34/184,985.65 = 39,078.64/x
  3. Step 3: Cross multiply
    123,320.34x = 184,985.65 × 39,078.64
  4. Step 4: Simplify right side
    123,320.34x = 7,228,986,696.59
  5. Step 5: Solve for x
    x = 7,228,986,696.59/123,320.34
  6. Step 6: Final answer
    x = 58,619.58

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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.