Home / 102,025.44-152,830.80-66,981.60

Finding the Fourth Proportional to 102,025.44, 152,830.80 and 66,981.60

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Solution

The fourth proportional to 102,025.44, 152,830.80 and 66,981.60 is: 100,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,025.44 : 152,830.80 = 66,981.60 : x
  2. Step 2: Convert to fraction form
    102,025.44/152,830.80 = 66,981.60/x
  3. Step 3: Cross multiply
    102,025.44x = 152,830.80 × 66,981.60
  4. Step 4: Simplify right side
    102,025.44x = 10,236,851,513.28
  5. Step 5: Solve for x
    x = 10,236,851,513.28/102,025.44
  6. Step 6: Final answer
    x = 100,336.26

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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.