Home / 145,025.60-217,538.40-51,540.80

Finding the Fourth Proportional to 145,025.60, 217,538.40 and 51,540.80

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Solution

The fourth proportional to 145,025.60, 217,538.40 and 51,540.80 is: 77,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,025.60 : 217,538.40 = 51,540.80 : x
  2. Step 2: Convert to fraction form
    145,025.60/217,538.40 = 51,540.80/x
  3. Step 3: Cross multiply
    145,025.60x = 217,538.40 × 51,540.80
  4. Step 4: Simplify right side
    145,025.60x = 11,212,103,166.72
  5. Step 5: Solve for x
    x = 11,212,103,166.72/145,025.60
  6. Step 6: Final answer
    x = 77,311.20

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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.