Home / 134,742.40-202,113.60-128,181.40

Finding the Fourth Proportional to 134,742.40, 202,113.60 and 128,181.40

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Solution

The fourth proportional to 134,742.40, 202,113.60 and 128,181.40 is: 192,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,742.40 : 202,113.60 = 128,181.40 : x
  2. Step 2: Convert to fraction form
    134,742.40/202,113.60 = 128,181.40/x
  3. Step 3: Cross multiply
    134,742.40x = 202,113.60 × 128,181.40
  4. Step 4: Simplify right side
    134,742.40x = 25,907,204,207.04
  5. Step 5: Solve for x
    x = 25,907,204,207.04/134,742.40
  6. Step 6: Final answer
    x = 192,272.10

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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.