Home / 120,274.09-165,995.80-69,276.89

Finding the Fourth Proportional to 120,274.09, 165,995.80 and 69,276.89

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Solution

The fourth proportional to 120,274.09, 165,995.80 and 69,276.89 is: 95,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,274.09 : 165,995.80 = 69,276.89 : x
  2. Step 2: Convert to fraction form
    120,274.09/165,995.80 = 69,276.89/x
  3. Step 3: Cross multiply
    120,274.09x = 165,995.80 × 69,276.89
  4. Step 4: Simplify right side
    120,274.09x = 11,499,673,018.86
  5. Step 5: Solve for x
    x = 11,499,673,018.86/120,274.09
  6. Step 6: Final answer
    x = 95,612.22

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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.