Home / 144,731.76-199,726.86-80,200.45

Finding the Fourth Proportional to 144,731.76, 199,726.86 and 80,200.45

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Solution

The fourth proportional to 144,731.76, 199,726.86 and 80,200.45 is: 110,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,731.76 : 199,726.86 = 80,200.45 : x
  2. Step 2: Convert to fraction form
    144,731.76/199,726.86 = 80,200.45/x
  3. Step 3: Cross multiply
    144,731.76x = 199,726.86 × 80,200.45
  4. Step 4: Simplify right side
    144,731.76x = 16,018,184,049.09
  5. Step 5: Solve for x
    x = 16,018,184,049.09/144,731.76
  6. Step 6: Final answer
    x = 110,674.98

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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.