Home / 185,386.46-278,162.40-85,493.03

Finding the Fourth Proportional to 185,386.46, 278,162.40 and 85,493.03

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Solution

The fourth proportional to 185,386.46, 278,162.40 and 85,493.03 is: 128,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,386.46 : 278,162.40 = 85,493.03 : x
  2. Step 2: Convert to fraction form
    185,386.46/278,162.40 = 85,493.03/x
  3. Step 3: Cross multiply
    185,386.46x = 278,162.40 × 85,493.03
  4. Step 4: Simplify right side
    185,386.46x = 23,780,946,408.07
  5. Step 5: Solve for x
    x = 23,780,946,408.07/185,386.46
  6. Step 6: Final answer
    x = 128,277.69

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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.