Home / 145,215.20-217,833.60-51,708.80

Finding the Fourth Proportional to 145,215.20, 217,833.60 and 51,708.80

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Solution

The fourth proportional to 145,215.20, 217,833.60 and 51,708.80 is: 77,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,215.20 : 217,833.60 = 51,708.80 : x
  2. Step 2: Convert to fraction form
    145,215.20/217,833.60 = 51,708.80/x
  3. Step 3: Cross multiply
    145,215.20x = 217,833.60 × 51,708.80
  4. Step 4: Simplify right side
    145,215.20x = 11,263,914,055.68
  5. Step 5: Solve for x
    x = 11,263,914,055.68/145,215.20
  6. Step 6: Final answer
    x = 77,567.05

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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.