Home / 115,507.80-173,268.18-109,224.36

Finding the Fourth Proportional to 115,507.80, 173,268.18 and 109,224.36

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Solution

The fourth proportional to 115,507.80, 173,268.18 and 109,224.36 is: 163,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,507.80 : 173,268.18 = 109,224.36 : x
  2. Step 2: Convert to fraction form
    115,507.80/173,268.18 = 109,224.36/x
  3. Step 3: Cross multiply
    115,507.80x = 173,268.18 × 109,224.36
  4. Step 4: Simplify right side
    115,507.80x = 18,925,106,068.86
  5. Step 5: Solve for x
    x = 18,925,106,068.86/115,507.80
  6. Step 6: Final answer
    x = 163,842.67

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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.