Home / 135,141.12-186,500.01-89,740.83

Finding the Fourth Proportional to 135,141.12, 186,500.01 and 89,740.83

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Solution

The fourth proportional to 135,141.12, 186,500.01 and 89,740.83 is: 123,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,141.12 : 186,500.01 = 89,740.83 : x
  2. Step 2: Convert to fraction form
    135,141.12/186,500.01 = 89,740.83/x
  3. Step 3: Cross multiply
    135,141.12x = 186,500.01 × 89,740.83
  4. Step 4: Simplify right side
    135,141.12x = 16,736,665,692.41
  5. Step 5: Solve for x
    x = 16,736,665,692.41/135,141.12
  6. Step 6: Final answer
    x = 123,845.84

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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.