Home / 104,419.40-156,526.14-66,872.84

Finding the Fourth Proportional to 104,419.40, 156,526.14 and 66,872.84

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Solution

The fourth proportional to 104,419.40, 156,526.14 and 66,872.84 is: 100,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.40 : 156,526.14 = 66,872.84 : x
  2. Step 2: Convert to fraction form
    104,419.40/156,526.14 = 66,872.84/x
  3. Step 3: Cross multiply
    104,419.40x = 156,526.14 × 66,872.84
  4. Step 4: Simplify right side
    104,419.40x = 10,467,347,516.04
  5. Step 5: Solve for x
    x = 10,467,347,516.04/104,419.40
  6. Step 6: Final answer
    x = 100,243.32

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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.