Home / 144,287.91-216,243.18-77,584.41

Finding the Fourth Proportional to 144,287.91, 216,243.18 and 77,584.41

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Solution

The fourth proportional to 144,287.91, 216,243.18 and 77,584.41 is: 116,275.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,287.91 : 216,243.18 = 77,584.41 : x
  2. Step 2: Convert to fraction form
    144,287.91/216,243.18 = 77,584.41/x
  3. Step 3: Cross multiply
    144,287.91x = 216,243.18 × 77,584.41
  4. Step 4: Simplify right side
    144,287.91x = 16,777,099,536.82
  5. Step 5: Solve for x
    x = 16,777,099,536.82/144,287.91
  6. Step 6: Final answer
    x = 116,275.16

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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.