Home / 102,002.58-140,763.57-56,679.23

Finding the Fourth Proportional to 102,002.58, 140,763.57 and 56,679.23

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Solution

The fourth proportional to 102,002.58, 140,763.57 and 56,679.23 is: 78,217.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,002.58 : 140,763.57 = 56,679.23 : x
  2. Step 2: Convert to fraction form
    102,002.58/140,763.57 = 56,679.23/x
  3. Step 3: Cross multiply
    102,002.58x = 140,763.57 × 56,679.23
  4. Step 4: Simplify right side
    102,002.58x = 7,978,370,759.65
  5. Step 5: Solve for x
    x = 7,978,370,759.65/102,002.58
  6. Step 6: Final answer
    x = 78,217.34

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1.5x scale

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.