Home / 130,758.44-180,431.75-73,389.98

Finding the Fourth Proportional to 130,758.44, 180,431.75 and 73,389.98

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Solution

The fourth proportional to 130,758.44, 180,431.75 and 73,389.98 is: 101,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,758.44 : 180,431.75 = 73,389.98 : x
  2. Step 2: Convert to fraction form
    130,758.44/180,431.75 = 73,389.98/x
  3. Step 3: Cross multiply
    130,758.44x = 180,431.75 × 73,389.98
  4. Step 4: Simplify right side
    130,758.44x = 13,241,883,158.42
  5. Step 5: Solve for x
    x = 13,241,883,158.42/130,758.44
  6. Step 6: Final answer
    x = 101,269.82

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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.