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Finding the Fourth Proportional to 173,492.15, 239,405.90 and 105,499.73

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Solution

The fourth proportional to 173,492.15, 239,405.90 and 105,499.73 is: 145,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,492.15 : 239,405.90 = 105,499.73 : x
  2. Step 2: Convert to fraction form
    173,492.15/239,405.90 = 105,499.73/x
  3. Step 3: Cross multiply
    173,492.15x = 239,405.90 × 105,499.73
  4. Step 4: Simplify right side
    173,492.15x = 25,257,257,881.42
  5. Step 5: Solve for x
    x = 25,257,257,881.42/173,492.15
  6. Step 6: Final answer
    x = 145,581.56

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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.