Home / 144,047.72-198,762.06-80,385.36

Finding the Fourth Proportional to 144,047.72, 198,762.06 and 80,385.36

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Solution

The fourth proportional to 144,047.72, 198,762.06 and 80,385.36 is: 110,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,047.72 : 198,762.06 = 80,385.36 : x
  2. Step 2: Convert to fraction form
    144,047.72/198,762.06 = 80,385.36/x
  3. Step 3: Cross multiply
    144,047.72x = 198,762.06 × 80,385.36
  4. Step 4: Simplify right side
    144,047.72x = 15,977,559,747.44
  5. Step 5: Solve for x
    x = 15,977,559,747.44/144,047.72
  6. Step 6: Final answer
    x = 110,918.52

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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.