Home / 101,122.06-139,546.26-55,798.30

Finding the Fourth Proportional to 101,122.06, 139,546.26 and 55,798.30

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Solution

The fourth proportional to 101,122.06, 139,546.26 and 55,798.30 is: 77,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,122.06 : 139,546.26 = 55,798.30 : x
  2. Step 2: Convert to fraction form
    101,122.06/139,546.26 = 55,798.30/x
  3. Step 3: Cross multiply
    101,122.06x = 139,546.26 × 55,798.30
  4. Step 4: Simplify right side
    101,122.06x = 7,786,444,079.36
  5. Step 5: Solve for x
    x = 7,786,444,079.36/101,122.06
  6. Step 6: Final answer
    x = 77,000.45

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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.