Home / 127,699.54-176,198.49-73,981.35

Finding the Fourth Proportional to 127,699.54, 176,198.49 and 73,981.35

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Solution

The fourth proportional to 127,699.54, 176,198.49 and 73,981.35 is: 102,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,699.54 : 176,198.49 = 73,981.35 : x
  2. Step 2: Convert to fraction form
    127,699.54/176,198.49 = 73,981.35/x
  3. Step 3: Cross multiply
    127,699.54x = 176,198.49 × 73,981.35
  4. Step 4: Simplify right side
    127,699.54x = 13,035,402,158.16
  5. Step 5: Solve for x
    x = 13,035,402,158.16/127,699.54
  6. Step 6: Final answer
    x = 102,078.70

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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.