Home / 144,389.61-216,682.83-86,735.43

Finding the Fourth Proportional to 144,389.61, 216,682.83 and 86,735.43

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Solution

The fourth proportional to 144,389.61, 216,682.83 and 86,735.43 is: 130,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,389.61 : 216,682.83 = 86,735.43 : x
  2. Step 2: Convert to fraction form
    144,389.61/216,682.83 = 86,735.43/x
  3. Step 3: Cross multiply
    144,389.61x = 216,682.83 × 86,735.43
  4. Step 4: Simplify right side
    144,389.61x = 18,794,078,433.67
  5. Step 5: Solve for x
    x = 18,794,078,433.67/144,389.61
  6. Step 6: Final answer
    x = 130,162.26

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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.