Home / 140,355.90-193,688.82-76,692.33

Finding the Fourth Proportional to 140,355.90, 193,688.82 and 76,692.33

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Solution

The fourth proportional to 140,355.90, 193,688.82 and 76,692.33 is: 105,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,355.90 : 193,688.82 = 76,692.33 : x
  2. Step 2: Convert to fraction form
    140,355.90/193,688.82 = 76,692.33/x
  3. Step 3: Cross multiply
    140,355.90x = 193,688.82 × 76,692.33
  4. Step 4: Simplify right side
    140,355.90x = 14,854,446,900.75
  5. Step 5: Solve for x
    x = 14,854,446,900.75/140,355.90
  6. Step 6: Final answer
    x = 105,834.15

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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.