Home / 115,768.44-159,734.70-70,470

Finding the Fourth Proportional to 115,768.44, 159,734.70 and 70,470

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Solution

The fourth proportional to 115,768.44, 159,734.70 and 70,470 is: 97,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,768.44 : 159,734.70 = 70,470 : x
  2. Step 2: Convert to fraction form
    115,768.44/159,734.70 = 70,470/x
  3. Step 3: Cross multiply
    115,768.44x = 159,734.70 × 70,470
  4. Step 4: Simplify right side
    115,768.44x = 11,256,504,309
  5. Step 5: Solve for x
    x = 11,256,504,309/115,768.44
  6. Step 6: Final answer
    x = 97,232.93

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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.