Home / 111,121.62-153,346.64-60,133.20

Finding the Fourth Proportional to 111,121.62, 153,346.64 and 60,133.20

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Solution

The fourth proportional to 111,121.62, 153,346.64 and 60,133.20 is: 82,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,121.62 : 153,346.64 = 60,133.20 : x
  2. Step 2: Convert to fraction form
    111,121.62/153,346.64 = 60,133.20/x
  3. Step 3: Cross multiply
    111,121.62x = 153,346.64 × 60,133.20
  4. Step 4: Simplify right side
    111,121.62x = 9,221,224,172.45
  5. Step 5: Solve for x
    x = 9,221,224,172.45/111,121.62
  6. Step 6: Final answer
    x = 82,983.17

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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.