Home / 115,457.08-159,440.82-109,167.06

Finding the Fourth Proportional to 115,457.08, 159,440.82 and 109,167.06

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Solution

The fourth proportional to 115,457.08, 159,440.82 and 109,167.06 is: 150,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,457.08 : 159,440.82 = 109,167.06 : x
  2. Step 2: Convert to fraction form
    115,457.08/159,440.82 = 109,167.06/x
  3. Step 3: Cross multiply
    115,457.08x = 159,440.82 × 109,167.06
  4. Step 4: Simplify right side
    115,457.08x = 17,405,685,563.39
  5. Step 5: Solve for x
    x = 17,405,685,563.39/115,457.08
  6. Step 6: Final answer
    x = 150,754.60

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1.5x scale

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.