Home / 104,089.20-156,133.80-66,764.40

Finding the Fourth Proportional to 104,089.20, 156,133.80 and 66,764.40

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Solution

The fourth proportional to 104,089.20, 156,133.80 and 66,764.40 is: 100,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,089.20 : 156,133.80 = 66,764.40 : x
  2. Step 2: Convert to fraction form
    104,089.20/156,133.80 = 66,764.40/x
  3. Step 3: Cross multiply
    104,089.20x = 156,133.80 × 66,764.40
  4. Step 4: Simplify right side
    104,089.20x = 10,424,179,476.72
  5. Step 5: Solve for x
    x = 10,424,179,476.72/104,089.20
  6. Step 6: Final answer
    x = 100,146.60

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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.