Home / 161,885.32-223,401.84-90,263.72

Finding the Fourth Proportional to 161,885.32, 223,401.84 and 90,263.72

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Solution

The fourth proportional to 161,885.32, 223,401.84 and 90,263.72 is: 124,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,885.32 : 223,401.84 = 90,263.72 : x
  2. Step 2: Convert to fraction form
    161,885.32/223,401.84 = 90,263.72/x
  3. Step 3: Cross multiply
    161,885.32x = 223,401.84 × 90,263.72
  4. Step 4: Simplify right side
    161,885.32x = 20,165,081,133.24
  5. Step 5: Solve for x
    x = 20,165,081,133.24/161,885.32
  6. Step 6: Final answer
    x = 124,563.99

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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.