Home / 140,785.48-194,284.08-77,125.60

Finding the Fourth Proportional to 140,785.48, 194,284.08 and 77,125.60

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Solution

The fourth proportional to 140,785.48, 194,284.08 and 77,125.60 is: 106,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,785.48 : 194,284.08 = 77,125.60 : x
  2. Step 2: Convert to fraction form
    140,785.48/194,284.08 = 77,125.60/x
  3. Step 3: Cross multiply
    140,785.48x = 194,284.08 × 77,125.60
  4. Step 4: Simplify right side
    140,785.48x = 14,984,276,240.45
  5. Step 5: Solve for x
    x = 14,984,276,240.45/140,785.48
  6. Step 6: Final answer
    x = 106,433.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.