Home / 104,692.20-157,038.30-99,771.45

Finding the Fourth Proportional to 104,692.20, 157,038.30 and 99,771.45

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Solution

The fourth proportional to 104,692.20, 157,038.30 and 99,771.45 is: 149,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,692.20 : 157,038.30 = 99,771.45 : x
  2. Step 2: Convert to fraction form
    104,692.20/157,038.30 = 99,771.45/x
  3. Step 3: Cross multiply
    104,692.20x = 157,038.30 × 99,771.45
  4. Step 4: Simplify right side
    104,692.20x = 15,667,938,896.54
  5. Step 5: Solve for x
    x = 15,667,938,896.54/104,692.20
  6. Step 6: Final answer
    x = 149,657.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.