Home / 103,995.96-156,027.33-72,109.50

Finding the Fourth Proportional to 103,995.96, 156,027.33 and 72,109.50

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Solution

The fourth proportional to 103,995.96, 156,027.33 and 72,109.50 is: 108,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,995.96 : 156,027.33 = 72,109.50 : x
  2. Step 2: Convert to fraction form
    103,995.96/156,027.33 = 72,109.50/x
  3. Step 3: Cross multiply
    103,995.96x = 156,027.33 × 72,109.50
  4. Step 4: Simplify right side
    103,995.96x = 11,251,052,752.64
  5. Step 5: Solve for x
    x = 11,251,052,752.64/103,995.96
  6. Step 6: Final answer
    x = 108,187.40

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1.5x scale

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.