Home / 143,878.37-198,548.19-83,445.17

Finding the Fourth Proportional to 143,878.37, 198,548.19 and 83,445.17

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Solution

The fourth proportional to 143,878.37, 198,548.19 and 83,445.17 is: 115,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,878.37 : 198,548.19 = 83,445.17 : x
  2. Step 2: Convert to fraction form
    143,878.37/198,548.19 = 83,445.17/x
  3. Step 3: Cross multiply
    143,878.37x = 198,548.19 × 83,445.17
  4. Step 4: Simplify right side
    143,878.37x = 16,567,886,475.00
  5. Step 5: Solve for x
    x = 16,567,886,475.00/143,878.37
  6. Step 6: Final answer
    x = 115,152.03

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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.