Home / 117,980.04-161,896.65-107,288.04

Finding the Fourth Proportional to 117,980.04, 161,896.65 and 107,288.04

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Solution

The fourth proportional to 117,980.04, 161,896.65 and 107,288.04 is: 147,224.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,980.04 : 161,896.65 = 107,288.04 : x
  2. Step 2: Convert to fraction form
    117,980.04/161,896.65 = 107,288.04/x
  3. Step 3: Cross multiply
    117,980.04x = 161,896.65 × 107,288.04
  4. Step 4: Simplify right side
    117,980.04x = 17,369,574,261.07
  5. Step 5: Solve for x
    x = 17,369,574,261.07/117,980.04
  6. Step 6: Final answer
    x = 147,224.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.