Home / 145,872.90-218,814.21-40,683.06

Finding the Fourth Proportional to 145,872.90, 218,814.21 and 40,683.06

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Solution

The fourth proportional to 145,872.90, 218,814.21 and 40,683.06 is: 61,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,872.90 : 218,814.21 = 40,683.06 : x
  2. Step 2: Convert to fraction form
    145,872.90/218,814.21 = 40,683.06/x
  3. Step 3: Cross multiply
    145,872.90x = 218,814.21 × 40,683.06
  4. Step 4: Simplify right side
    145,872.90x = 8,902,031,634.28
  5. Step 5: Solve for x
    x = 8,902,031,634.28/145,872.90
  6. Step 6: Final answer
    x = 61,025.95

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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.