Home / 143,548.10-198,087.93-83,114.45

Finding the Fourth Proportional to 143,548.10, 198,087.93 and 83,114.45

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Solution

The fourth proportional to 143,548.10, 198,087.93 and 83,114.45 is: 114,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,548.10 : 198,087.93 = 83,114.45 : x
  2. Step 2: Convert to fraction form
    143,548.10/198,087.93 = 83,114.45/x
  3. Step 3: Cross multiply
    143,548.10x = 198,087.93 × 83,114.45
  4. Step 4: Simplify right side
    143,548.10x = 16,463,968,363.15
  5. Step 5: Solve for x
    x = 16,463,968,363.15/143,548.10
  6. Step 6: Final answer
    x = 114,693.05

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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.