Home / 119,999.45-165,576.33-72,255.89

Finding the Fourth Proportional to 119,999.45, 165,576.33 and 72,255.89

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Solution

The fourth proportional to 119,999.45, 165,576.33 and 72,255.89 is: 99,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,999.45 : 165,576.33 = 72,255.89 : x
  2. Step 2: Convert to fraction form
    119,999.45/165,576.33 = 72,255.89/x
  3. Step 3: Cross multiply
    119,999.45x = 165,576.33 × 72,255.89
  4. Step 4: Simplify right side
    119,999.45x = 11,963,864,259.20
  5. Step 5: Solve for x
    x = 11,963,864,259.20/119,999.45
  6. Step 6: Final answer
    x = 99,699.33

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1.5x scale

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.