Home / 145,000.96-217,459.68-39,823.36

Finding the Fourth Proportional to 145,000.96, 217,459.68 and 39,823.36

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Solution

The fourth proportional to 145,000.96, 217,459.68 and 39,823.36 is: 59,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,000.96 : 217,459.68 = 39,823.36 : x
  2. Step 2: Convert to fraction form
    145,000.96/217,459.68 = 39,823.36/x
  3. Step 3: Cross multiply
    145,000.96x = 217,459.68 × 39,823.36
  4. Step 4: Simplify right side
    145,000.96x = 8,659,975,122.12
  5. Step 5: Solve for x
    x = 8,659,975,122.12/145,000.96
  6. Step 6: Final answer
    x = 59,723.57

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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.