Home / 144,058.45-198,811.93-80,405.82

Finding the Fourth Proportional to 144,058.45, 198,811.93 and 80,405.82

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Solution

The fourth proportional to 144,058.45, 198,811.93 and 80,405.82 is: 110,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,058.45 : 198,811.93 = 80,405.82 : x
  2. Step 2: Convert to fraction form
    144,058.45/198,811.93 = 80,405.82/x
  3. Step 3: Cross multiply
    144,058.45x = 198,811.93 × 80,405.82
  4. Step 4: Simplify right side
    144,058.45x = 15,985,636,257.43
  5. Step 5: Solve for x
    x = 15,985,636,257.43/144,058.45
  6. Step 6: Final answer
    x = 110,966.32

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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.