Home / 107,799.60-161,699.40-90,692.40

Finding the Fourth Proportional to 107,799.60, 161,699.40 and 90,692.40

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Solution

The fourth proportional to 107,799.60, 161,699.40 and 90,692.40 is: 136,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,799.60 : 161,699.40 = 90,692.40 : x
  2. Step 2: Convert to fraction form
    107,799.60/161,699.40 = 90,692.40/x
  3. Step 3: Cross multiply
    107,799.60x = 161,699.40 × 90,692.40
  4. Step 4: Simplify right side
    107,799.60x = 14,664,906,664.56
  5. Step 5: Solve for x
    x = 14,664,906,664.56/107,799.60
  6. Step 6: Final answer
    x = 136,038.60

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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.