Home / 135,039.60-202,397.40-56,113.20

Finding the Fourth Proportional to 135,039.60, 202,397.40 and 56,113.20

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Solution

The fourth proportional to 135,039.60, 202,397.40 and 56,113.20 is: 84,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,039.60 : 202,397.40 = 56,113.20 : x
  2. Step 2: Convert to fraction form
    135,039.60/202,397.40 = 56,113.20/x
  3. Step 3: Cross multiply
    135,039.60x = 202,397.40 × 56,113.20
  4. Step 4: Simplify right side
    135,039.60x = 11,357,165,785.68
  5. Step 5: Solve for x
    x = 11,357,165,785.68/135,039.60
  6. Step 6: Final answer
    x = 84,102.48

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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.