Home / 123,628.80-185,457.69-39,359.46

Finding the Fourth Proportional to 123,628.80, 185,457.69 and 39,359.46

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Solution

The fourth proportional to 123,628.80, 185,457.69 and 39,359.46 is: 59,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,628.80 : 185,457.69 = 39,359.46 : x
  2. Step 2: Convert to fraction form
    123,628.80/185,457.69 = 39,359.46/x
  3. Step 3: Cross multiply
    123,628.80x = 185,457.69 × 39,359.46
  4. Step 4: Simplify right side
    123,628.80x = 7,299,514,531.25
  5. Step 5: Solve for x
    x = 7,299,514,531.25/123,628.80
  6. Step 6: Final answer
    x = 59,043.80

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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.