Home / 144,138.84-198,909.74-80,477.72

Finding the Fourth Proportional to 144,138.84, 198,909.74 and 80,477.72

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Solution

The fourth proportional to 144,138.84, 198,909.74 and 80,477.72 is: 111,058.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,138.84 : 198,909.74 = 80,477.72 : x
  2. Step 2: Convert to fraction form
    144,138.84/198,909.74 = 80,477.72/x
  3. Step 3: Cross multiply
    144,138.84x = 198,909.74 × 80,477.72
  4. Step 4: Simplify right side
    144,138.84x = 16,007,802,360.99
  5. Step 5: Solve for x
    x = 16,007,802,360.99/144,138.84
  6. Step 6: Final answer
    x = 111,058.22

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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.