Home / 111,126.72-153,353.78-60,138.36

Finding the Fourth Proportional to 111,126.72, 153,353.78 and 60,138.36

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Solution

The fourth proportional to 111,126.72, 153,353.78 and 60,138.36 is: 82,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,126.72 : 153,353.78 = 60,138.36 : x
  2. Step 2: Convert to fraction form
    111,126.72/153,353.78 = 60,138.36/x
  3. Step 3: Cross multiply
    111,126.72x = 153,353.78 × 60,138.36
  4. Step 4: Simplify right side
    111,126.72x = 9,222,444,829.00
  5. Step 5: Solve for x
    x = 9,222,444,829.00/111,126.72
  6. Step 6: Final answer
    x = 82,990.34

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1.5x scale

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.