Home / 74,197.96-102,408.64-68,220.16

Finding the Fourth Proportional to 74,197.96, 102,408.64 and 68,220.16

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Solution

The fourth proportional to 74,197.96, 102,408.64 and 68,220.16 is: 94,158.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,197.96 : 102,408.64 = 68,220.16 : x
  2. Step 2: Convert to fraction form
    74,197.96/102,408.64 = 68,220.16/x
  3. Step 3: Cross multiply
    74,197.96x = 102,408.64 × 68,220.16
  4. Step 4: Simplify right side
    74,197.96x = 6,986,333,379.61
  5. Step 5: Solve for x
    x = 6,986,333,379.61/74,197.96
  6. Step 6: Final answer
    x = 94,158.03

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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.