Home / 155,491.20-233,236.80-66,729.60

Finding the Fourth Proportional to 155,491.20, 233,236.80 and 66,729.60

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Solution

The fourth proportional to 155,491.20, 233,236.80 and 66,729.60 is: 100,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,491.20 : 233,236.80 = 66,729.60 : x
  2. Step 2: Convert to fraction form
    155,491.20/233,236.80 = 66,729.60/x
  3. Step 3: Cross multiply
    155,491.20x = 233,236.80 × 66,729.60
  4. Step 4: Simplify right side
    155,491.20x = 15,563,798,369.28
  5. Step 5: Solve for x
    x = 15,563,798,369.28/155,491.20
  6. Step 6: Final answer
    x = 100,094.40

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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.