Home / 123,629.80-185,459.20-39,360.46

Finding the Fourth Proportional to 123,629.80, 185,459.20 and 39,360.46

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Solution

The fourth proportional to 123,629.80, 185,459.20 and 39,360.46 is: 59,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,629.80 : 185,459.20 = 39,360.46 : x
  2. Step 2: Convert to fraction form
    123,629.80/185,459.20 = 39,360.46/x
  3. Step 3: Cross multiply
    123,629.80x = 185,459.20 × 39,360.46
  4. Step 4: Simplify right side
    123,629.80x = 7,299,759,423.23
  5. Step 5: Solve for x
    x = 7,299,759,423.23/123,629.80
  6. Step 6: Final answer
    x = 59,045.31

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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.