Home / 143,441.40-197,813.26-91,774.84

Finding the Fourth Proportional to 143,441.40, 197,813.26 and 91,774.84

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Solution

The fourth proportional to 143,441.40, 197,813.26 and 91,774.84 is: 126,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,441.40 : 197,813.26 = 91,774.84 : x
  2. Step 2: Convert to fraction form
    143,441.40/197,813.26 = 91,774.84/x
  3. Step 3: Cross multiply
    143,441.40x = 197,813.26 × 91,774.84
  4. Step 4: Simplify right side
    143,441.40x = 18,154,280,511.63
  5. Step 5: Solve for x
    x = 18,154,280,511.63/143,441.40
  6. Step 6: Final answer
    x = 126,562.35

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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.