Home / 143,532.52-198,130-107,826.12

Finding the Fourth Proportional to 143,532.52, 198,130 and 107,826.12

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Solution

The fourth proportional to 143,532.52, 198,130 and 107,826.12 is: 148,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,532.52 : 198,130 = 107,826.12 : x
  2. Step 2: Convert to fraction form
    143,532.52/198,130 = 107,826.12/x
  3. Step 3: Cross multiply
    143,532.52x = 198,130 × 107,826.12
  4. Step 4: Simplify right side
    143,532.52x = 21,363,589,155.60
  5. Step 5: Solve for x
    x = 21,363,589,155.60/143,532.52
  6. Step 6: Final answer
    x = 148,841.46

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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.