Home / 128,994.23-193,381.07-48,987.41

Finding the Fourth Proportional to 128,994.23, 193,381.07 and 48,987.41

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Solution

The fourth proportional to 128,994.23, 193,381.07 and 48,987.41 is: 73,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,994.23 : 193,381.07 = 48,987.41 : x
  2. Step 2: Convert to fraction form
    128,994.23/193,381.07 = 48,987.41/x
  3. Step 3: Cross multiply
    128,994.23x = 193,381.07 × 48,987.41
  4. Step 4: Simplify right side
    128,994.23x = 9,473,236,550.49
  5. Step 5: Solve for x
    x = 9,473,236,550.49/128,994.23
  6. Step 6: Final answer
    x = 73,439.23

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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.