Home / 144,734.76-199,731-80,203.45

Finding the Fourth Proportional to 144,734.76, 199,731 and 80,203.45

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Solution

The fourth proportional to 144,734.76, 199,731 and 80,203.45 is: 110,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,734.76 : 199,731 = 80,203.45 : x
  2. Step 2: Convert to fraction form
    144,734.76/199,731 = 80,203.45/x
  3. Step 3: Cross multiply
    144,734.76x = 199,731 × 80,203.45
  4. Step 4: Simplify right side
    144,734.76x = 16,019,115,271.95
  5. Step 5: Solve for x
    x = 16,019,115,271.95/144,734.76
  6. Step 6: Final answer
    x = 110,679.12

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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.