Home / 98,930.09-136,530.23-55,894.66

Finding the Fourth Proportional to 98,930.09, 136,530.23 and 55,894.66

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Solution

The fourth proportional to 98,930.09, 136,530.23 and 55,894.66 is: 77,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,930.09 : 136,530.23 = 55,894.66 : x
  2. Step 2: Convert to fraction form
    98,930.09/136,530.23 = 55,894.66/x
  3. Step 3: Cross multiply
    98,930.09x = 136,530.23 × 55,894.66
  4. Step 4: Simplify right side
    98,930.09x = 7,631,310,164.77
  5. Step 5: Solve for x
    x = 7,631,310,164.77/98,930.09
  6. Step 6: Final answer
    x = 77,138.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.