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Finding the Fourth Proportional to 145,235.95, 217,854.09 and 45,396.67

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Solution

The fourth proportional to 145,235.95, 217,854.09 and 45,396.67 is: 68,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,235.95 : 217,854.09 = 45,396.67 : x
  2. Step 2: Convert to fraction form
    145,235.95/217,854.09 = 45,396.67/x
  3. Step 3: Cross multiply
    145,235.95x = 217,854.09 × 45,396.67
  4. Step 4: Simplify right side
    145,235.95x = 9,889,850,231.88
  5. Step 5: Solve for x
    x = 9,889,850,231.88/145,235.95
  6. Step 6: Final answer
    x = 68,095.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.