Home / 145,135.72-217,717.33-56,396.07

Finding the Fourth Proportional to 145,135.72, 217,717.33 and 56,396.07

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Solution

The fourth proportional to 145,135.72, 217,717.33 and 56,396.07 is: 84,599.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,135.72 : 217,717.33 = 56,396.07 : x
  2. Step 2: Convert to fraction form
    145,135.72/217,717.33 = 56,396.07/x
  3. Step 3: Cross multiply
    145,135.72x = 217,717.33 × 56,396.07
  4. Step 4: Simplify right side
    145,135.72x = 12,278,401,782.89
  5. Step 5: Solve for x
    x = 12,278,401,782.89/145,135.72
  6. Step 6: Final answer
    x = 84,599.45

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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.