Home / 90,735.40-136,103.10-62,741.80

Finding the Fourth Proportional to 90,735.40, 136,103.10 and 62,741.80

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Solution

The fourth proportional to 90,735.40, 136,103.10 and 62,741.80 is: 94,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,735.40 : 136,103.10 = 62,741.80 : x
  2. Step 2: Convert to fraction form
    90,735.40/136,103.10 = 62,741.80/x
  3. Step 3: Cross multiply
    90,735.40x = 136,103.10 × 62,741.80
  4. Step 4: Simplify right side
    90,735.40x = 8,539,353,479.58
  5. Step 5: Solve for x
    x = 8,539,353,479.58/90,735.40
  6. Step 6: Final answer
    x = 94,112.70

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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.