Home / 161,448.21-242,172.52-77,188.57

Finding the Fourth Proportional to 161,448.21, 242,172.52 and 77,188.57

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Solution

The fourth proportional to 161,448.21, 242,172.52 and 77,188.57 is: 115,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,448.21 : 242,172.52 = 77,188.57 : x
  2. Step 2: Convert to fraction form
    161,448.21/242,172.52 = 77,188.57/x
  3. Step 3: Cross multiply
    161,448.21x = 242,172.52 × 77,188.57
  4. Step 4: Simplify right side
    161,448.21x = 18,692,949,713.69
  5. Step 5: Solve for x
    x = 18,692,949,713.69/161,448.21
  6. Step 6: Final answer
    x = 115,782.95

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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.