Home / 98,427.72-147,706.76-54,085.36

Finding the Fourth Proportional to 98,427.72, 147,706.76 and 54,085.36

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Solution

The fourth proportional to 98,427.72, 147,706.76 and 54,085.36 is: 81,163.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,427.72 : 147,706.76 = 54,085.36 : x
  2. Step 2: Convert to fraction form
    98,427.72/147,706.76 = 54,085.36/x
  3. Step 3: Cross multiply
    98,427.72x = 147,706.76 × 54,085.36
  4. Step 4: Simplify right side
    98,427.72x = 7,988,773,289.03
  5. Step 5: Solve for x
    x = 7,988,773,289.03/98,427.72
  6. Step 6: Final answer
    x = 81,163.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.