Home / 155,511.20-233,266.80-66,749.60

Finding the Fourth Proportional to 155,511.20, 233,266.80 and 66,749.60

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Solution

The fourth proportional to 155,511.20, 233,266.80 and 66,749.60 is: 100,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,511.20 : 233,266.80 = 66,749.60 : x
  2. Step 2: Convert to fraction form
    155,511.20/233,266.80 = 66,749.60/x
  3. Step 3: Cross multiply
    155,511.20x = 233,266.80 × 66,749.60
  4. Step 4: Simplify right side
    155,511.20x = 15,570,465,593.28
  5. Step 5: Solve for x
    x = 15,570,465,593.28/155,511.20
  6. Step 6: Final answer
    x = 100,124.40

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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.