Home / 143,684.08-198,041.05-98,283.78

Finding the Fourth Proportional to 143,684.08, 198,041.05 and 98,283.78

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Solution

The fourth proportional to 143,684.08, 198,041.05 and 98,283.78 is: 135,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,684.08 : 198,041.05 = 98,283.78 : x
  2. Step 2: Convert to fraction form
    143,684.08/198,041.05 = 98,283.78/x
  3. Step 3: Cross multiply
    143,684.08x = 198,041.05 × 98,283.78
  4. Step 4: Simplify right side
    143,684.08x = 19,464,223,112.02
  5. Step 5: Solve for x
    x = 19,464,223,112.02/143,684.08
  6. Step 6: Final answer
    x = 135,465.41

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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.