Home / 130,829.72-180,497.77-74,208.29

Finding the Fourth Proportional to 130,829.72, 180,497.77 and 74,208.29

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Solution

The fourth proportional to 130,829.72, 180,497.77 and 74,208.29 is: 102,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,829.72 : 180,497.77 = 74,208.29 : x
  2. Step 2: Convert to fraction form
    130,829.72/180,497.77 = 74,208.29/x
  3. Step 3: Cross multiply
    130,829.72x = 180,497.77 × 74,208.29
  4. Step 4: Simplify right side
    130,829.72x = 13,394,429,586.98
  5. Step 5: Solve for x
    x = 13,394,429,586.98/130,829.72
  6. Step 6: Final answer
    x = 102,380.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.