Home / 145,243.20-217,864.80-134,745.60

Finding the Fourth Proportional to 145,243.20, 217,864.80 and 134,745.60

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Solution

The fourth proportional to 145,243.20, 217,864.80 and 134,745.60 is: 202,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,243.20 : 217,864.80 = 134,745.60 : x
  2. Step 2: Convert to fraction form
    145,243.20/217,864.80 = 134,745.60/x
  3. Step 3: Cross multiply
    145,243.20x = 217,864.80 × 134,745.60
  4. Step 4: Simplify right side
    145,243.20x = 29,356,323,194.88
  5. Step 5: Solve for x
    x = 29,356,323,194.88/145,243.20
  6. Step 6: Final answer
    x = 202,118.40

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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.