Home / 144,219.40-198,741.60-103,856.90

Finding the Fourth Proportional to 144,219.40, 198,741.60 and 103,856.90

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Solution

The fourth proportional to 144,219.40, 198,741.60 and 103,856.90 is: 143,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,219.40 : 198,741.60 = 103,856.90 : x
  2. Step 2: Convert to fraction form
    144,219.40/198,741.60 = 103,856.90/x
  3. Step 3: Cross multiply
    144,219.40x = 198,741.60 × 103,856.90
  4. Step 4: Simplify right side
    144,219.40x = 20,640,686,477.04
  5. Step 5: Solve for x
    x = 20,640,686,477.04/144,219.40
  6. Step 6: Final answer
    x = 143,120.04

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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.