Home / 120,354.49-166,094.90-72,606.81

Finding the Fourth Proportional to 120,354.49, 166,094.90 and 72,606.81

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Solution

The fourth proportional to 120,354.49, 166,094.90 and 72,606.81 is: 100,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,354.49 : 166,094.90 = 72,606.81 : x
  2. Step 2: Convert to fraction form
    120,354.49/166,094.90 = 72,606.81/x
  3. Step 3: Cross multiply
    120,354.49x = 166,094.90 × 72,606.81
  4. Step 4: Simplify right side
    120,354.49x = 12,059,620,846.27
  5. Step 5: Solve for x
    x = 12,059,620,846.27/120,354.49
  6. Step 6: Final answer
    x = 100,200.84

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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.