Home / 130,840.44-180,559.29-73,471.78

Finding the Fourth Proportional to 130,840.44, 180,559.29 and 73,471.78

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Solution

The fourth proportional to 130,840.44, 180,559.29 and 73,471.78 is: 101,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,840.44 : 180,559.29 = 73,471.78 : x
  2. Step 2: Convert to fraction form
    130,840.44/180,559.29 = 73,471.78/x
  3. Step 3: Cross multiply
    130,840.44x = 180,559.29 × 73,471.78
  4. Step 4: Simplify right side
    130,840.44x = 13,266,012,431.84
  5. Step 5: Solve for x
    x = 13,266,012,431.84/130,840.44
  6. Step 6: Final answer
    x = 101,390.77

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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.