Home / 135,030.32-202,672.60-68,518.20

Finding the Fourth Proportional to 135,030.32, 202,672.60 and 68,518.20

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Solution

The fourth proportional to 135,030.32, 202,672.60 and 68,518.20 is: 102,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,030.32 : 202,672.60 = 68,518.20 : x
  2. Step 2: Convert to fraction form
    135,030.32/202,672.60 = 68,518.20/x
  3. Step 3: Cross multiply
    135,030.32x = 202,672.60 × 68,518.20
  4. Step 4: Simplify right side
    135,030.32x = 13,886,761,741.32
  5. Step 5: Solve for x
    x = 13,886,761,741.32/135,030.32
  6. Step 6: Final answer
    x = 102,841.80

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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.