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Finding the Fourth Proportional to 162,178.32, 223,803.99 and 90,559.56

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Solution

The fourth proportional to 162,178.32, 223,803.99 and 90,559.56 is: 124,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,178.32 : 223,803.99 = 90,559.56 : x
  2. Step 2: Convert to fraction form
    162,178.32/223,803.99 = 90,559.56/x
  3. Step 3: Cross multiply
    162,178.32x = 223,803.99 × 90,559.56
  4. Step 4: Simplify right side
    162,178.32x = 20,267,590,860.64
  5. Step 5: Solve for x
    x = 20,267,590,860.64/162,178.32
  6. Step 6: Final answer
    x = 124,971.02

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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.