Home / 104,559.20-156,838.80-102,485.60

Finding the Fourth Proportional to 104,559.20, 156,838.80 and 102,485.60

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Solution

The fourth proportional to 104,559.20, 156,838.80 and 102,485.60 is: 153,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,559.20 : 156,838.80 = 102,485.60 : x
  2. Step 2: Convert to fraction form
    104,559.20/156,838.80 = 102,485.60/x
  3. Step 3: Cross multiply
    104,559.20x = 156,838.80 × 102,485.60
  4. Step 4: Simplify right side
    104,559.20x = 16,073,718,521.28
  5. Step 5: Solve for x
    x = 16,073,718,521.28/104,559.20
  6. Step 6: Final answer
    x = 153,728.40

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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.