Home / 117,623.12-162,209.22-90,723.02

Finding the Fourth Proportional to 117,623.12, 162,209.22 and 90,723.02

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Solution

The fourth proportional to 117,623.12, 162,209.22 and 90,723.02 is: 125,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,623.12 : 162,209.22 = 90,723.02 : x
  2. Step 2: Convert to fraction form
    117,623.12/162,209.22 = 90,723.02/x
  3. Step 3: Cross multiply
    117,623.12x = 162,209.22 × 90,723.02
  4. Step 4: Simplify right side
    117,623.12x = 14,716,110,310.24
  5. Step 5: Solve for x
    x = 14,716,110,310.24/117,623.12
  6. Step 6: Final answer
    x = 125,112.40

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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.