Home / 107,623.40-161,051.10-68,199.40

Finding the Fourth Proportional to 107,623.40, 161,051.10 and 68,199.40

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Solution

The fourth proportional to 107,623.40, 161,051.10 and 68,199.40 is: 102,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,623.40 : 161,051.10 = 68,199.40 : x
  2. Step 2: Convert to fraction form
    107,623.40/161,051.10 = 68,199.40/x
  3. Step 3: Cross multiply
    107,623.40x = 161,051.10 × 68,199.40
  4. Step 4: Simplify right side
    107,623.40x = 10,983,588,389.34
  5. Step 5: Solve for x
    x = 10,983,588,389.34/107,623.40
  6. Step 6: Final answer
    x = 102,055.76

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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.