Home / 122,019.11-168,389.89-68,303.81

Finding the Fourth Proportional to 122,019.11, 168,389.89 and 68,303.81

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Solution

The fourth proportional to 122,019.11, 168,389.89 and 68,303.81 is: 94,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,019.11 : 168,389.89 = 68,303.81 : x
  2. Step 2: Convert to fraction form
    122,019.11/168,389.89 = 68,303.81/x
  3. Step 3: Cross multiply
    122,019.11x = 168,389.89 × 68,303.81
  4. Step 4: Simplify right side
    122,019.11x = 11,501,670,355.50
  5. Step 5: Solve for x
    x = 11,501,670,355.50/122,019.11
  6. Step 6: Final answer
    x = 94,261.22

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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.