Home / 122,078.07-183,175.43-77,754.87

Finding the Fourth Proportional to 122,078.07, 183,175.43 and 77,754.87

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Solution

The fourth proportional to 122,078.07, 183,175.43 and 77,754.87 is: 116,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,078.07 : 183,175.43 = 77,754.87 : x
  2. Step 2: Convert to fraction form
    122,078.07/183,175.43 = 77,754.87/x
  3. Step 3: Cross multiply
    122,078.07x = 183,175.43 × 77,754.87
  4. Step 4: Simplify right side
    122,078.07x = 14,242,781,358.07
  5. Step 5: Solve for x
    x = 14,242,781,358.07/122,078.07
  6. Step 6: Final answer
    x = 116,669.45

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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.