Home / 172,575.04-258,755.34-72,683.80

Finding the Fourth Proportional to 172,575.04, 258,755.34 and 72,683.80

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Solution

The fourth proportional to 172,575.04, 258,755.34 and 72,683.80 is: 108,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,575.04 : 258,755.34 = 72,683.80 : x
  2. Step 2: Convert to fraction form
    172,575.04/258,755.34 = 72,683.80/x
  3. Step 3: Cross multiply
    172,575.04x = 258,755.34 × 72,683.80
  4. Step 4: Simplify right side
    172,575.04x = 18,807,321,381.49
  5. Step 5: Solve for x
    x = 18,807,321,381.49/172,575.04
  6. Step 6: Final answer
    x = 108,980.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.