Home / 102,783.21-141,884.56-62,509.91

Finding the Fourth Proportional to 102,783.21, 141,884.56 and 62,509.91

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Solution

The fourth proportional to 102,783.21, 141,884.56 and 62,509.91 is: 86,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,783.21 : 141,884.56 = 62,509.91 : x
  2. Step 2: Convert to fraction form
    102,783.21/141,884.56 = 62,509.91/x
  3. Step 3: Cross multiply
    102,783.21x = 141,884.56 × 62,509.91
  4. Step 4: Simplify right side
    102,783.21x = 8,869,190,763.44
  5. Step 5: Solve for x
    x = 8,869,190,763.44/102,783.21
  6. Step 6: Final answer
    x = 86,290.27

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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.