Home / 189,331.20-283,996.80-161,186.40

Finding the Fourth Proportional to 189,331.20, 283,996.80 and 161,186.40

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Solution

The fourth proportional to 189,331.20, 283,996.80 and 161,186.40 is: 241,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,331.20 : 283,996.80 = 161,186.40 : x
  2. Step 2: Convert to fraction form
    189,331.20/283,996.80 = 161,186.40/x
  3. Step 3: Cross multiply
    189,331.20x = 283,996.80 × 161,186.40
  4. Step 4: Simplify right side
    189,331.20x = 45,776,421,803.52
  5. Step 5: Solve for x
    x = 45,776,421,803.52/189,331.20
  6. Step 6: Final answer
    x = 241,779.60

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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.