Home / 120,331.04-165,956.46-90,188.24

Finding the Fourth Proportional to 120,331.04, 165,956.46 and 90,188.24

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Solution

The fourth proportional to 120,331.04, 165,956.46 and 90,188.24 is: 124,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,331.04 : 165,956.46 = 90,188.24 : x
  2. Step 2: Convert to fraction form
    120,331.04/165,956.46 = 90,188.24/x
  3. Step 3: Cross multiply
    120,331.04x = 165,956.46 × 90,188.24
  4. Step 4: Simplify right side
    120,331.04x = 14,967,321,044.03
  5. Step 5: Solve for x
    x = 14,967,321,044.03/120,331.04
  6. Step 6: Final answer
    x = 124,384.54

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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.