Home / 143,463.36-198,121.40-118,219.84

Finding the Fourth Proportional to 143,463.36, 198,121.40 and 118,219.84

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Solution

The fourth proportional to 143,463.36, 198,121.40 and 118,219.84 is: 163,260.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,463.36 : 198,121.40 = 118,219.84 : x
  2. Step 2: Convert to fraction form
    143,463.36/198,121.40 = 118,219.84/x
  3. Step 3: Cross multiply
    143,463.36x = 198,121.40 × 118,219.84
  4. Step 4: Simplify right side
    143,463.36x = 23,421,880,208.58
  5. Step 5: Solve for x
    x = 23,421,880,208.58/143,463.36
  6. Step 6: Final answer
    x = 163,260.36

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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.