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Finding the Fourth Proportional to 68,465.80, 96,128.60 and 68,465.80

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Solution

The fourth proportional to 68,465.80, 96,128.60 and 68,465.80 is: 96,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,465.80 : 96,128.60 = 68,465.80 : x
  2. Step 2: Convert to fraction form
    68,465.80/96,128.60 = 68,465.80/x
  3. Step 3: Cross multiply
    68,465.80x = 96,128.60 × 68,465.80
  4. Step 4: Simplify right side
    68,465.80x = 6,581,521,501.88
  5. Step 5: Solve for x
    x = 6,581,521,501.88/68,465.80
  6. Step 6: Final answer
    x = 96,128.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.