Home / 105,003.15-157,504.73-67,605.45

Finding the Fourth Proportional to 105,003.15, 157,504.73 and 67,605.45

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Solution

The fourth proportional to 105,003.15, 157,504.73 and 67,605.45 is: 101,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,003.15 : 157,504.73 = 67,605.45 : x
  2. Step 2: Convert to fraction form
    105,003.15/157,504.73 = 67,605.45/x
  3. Step 3: Cross multiply
    105,003.15x = 157,504.73 × 67,605.45
  4. Step 4: Simplify right side
    105,003.15x = 10,648,177,810.75
  5. Step 5: Solve for x
    x = 10,648,177,810.75/105,003.15
  6. Step 6: Final answer
    x = 101,408.18

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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.