Home / 103,169.45-154,525.55-79,301.25

Finding the Fourth Proportional to 103,169.45, 154,525.55 and 79,301.25

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Solution

The fourth proportional to 103,169.45, 154,525.55 and 79,301.25 is: 118,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,169.45 : 154,525.55 = 79,301.25 : x
  2. Step 2: Convert to fraction form
    103,169.45/154,525.55 = 79,301.25/x
  3. Step 3: Cross multiply
    103,169.45x = 154,525.55 × 79,301.25
  4. Step 4: Simplify right side
    103,169.45x = 12,254,068,875.43
  5. Step 5: Solve for x
    x = 12,254,068,875.43/103,169.45
  6. Step 6: Final answer
    x = 118,776.14

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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.