Home / 115,805.40-173,999.70-73,705.65

Finding the Fourth Proportional to 115,805.40, 173,999.70 and 73,705.65

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Solution

The fourth proportional to 115,805.40, 173,999.70 and 73,705.65 is: 110,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,805.40 : 173,999.70 = 73,705.65 : x
  2. Step 2: Convert to fraction form
    115,805.40/173,999.70 = 73,705.65/x
  3. Step 3: Cross multiply
    115,805.40x = 173,999.70 × 73,705.65
  4. Step 4: Simplify right side
    115,805.40x = 12,824,760,988.31
  5. Step 5: Solve for x
    x = 12,824,760,988.31/115,805.40
  6. Step 6: Final answer
    x = 110,744.07

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1.5x scale

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.