Home / 424,259.03-636,388.31-124,742.09

Finding the Fourth Proportional to 424,259.03, 636,388.31 and 124,742.09

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Solution

The fourth proportional to 424,259.03, 636,388.31 and 124,742.09 is: 187,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,259.03 : 636,388.31 = 124,742.09 : x
  2. Step 2: Convert to fraction form
    424,259.03/636,388.31 = 124,742.09/x
  3. Step 3: Cross multiply
    424,259.03x = 636,388.31 × 124,742.09
  4. Step 4: Simplify right side
    424,259.03x = 79,384,409,743.79
  5. Step 5: Solve for x
    x = 79,384,409,743.79/424,259.03
  6. Step 6: Final answer
    x = 187,113.07

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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.