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Finding the Fourth Proportional to 101,141.60, 151,420.80 and 89,477.60

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Solution

The fourth proportional to 101,141.60, 151,420.80 and 89,477.60 is: 133,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,141.60 : 151,420.80 = 89,477.60 : x
  2. Step 2: Convert to fraction form
    101,141.60/151,420.80 = 89,477.60/x
  3. Step 3: Cross multiply
    101,141.60x = 151,420.80 × 89,477.60
  4. Step 4: Simplify right side
    101,141.60x = 13,548,769,774.08
  5. Step 5: Solve for x
    x = 13,548,769,774.08/101,141.60
  6. Step 6: Final answer
    x = 133,958.43

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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.