Home / 122,530.70-183,887.58-91,013.60

Finding the Fourth Proportional to 122,530.70, 183,887.58 and 91,013.60

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Solution

The fourth proportional to 122,530.70, 183,887.58 and 91,013.60 is: 136,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,530.70 : 183,887.58 = 91,013.60 : x
  2. Step 2: Convert to fraction form
    122,530.70/183,887.58 = 91,013.60/x
  3. Step 3: Cross multiply
    122,530.70x = 183,887.58 × 91,013.60
  4. Step 4: Simplify right side
    122,530.70x = 16,736,270,651.09
  5. Step 5: Solve for x
    x = 16,736,270,651.09/122,530.70
  6. Step 6: Final answer
    x = 136,588.39

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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.