Home / 115,430.82-159,250.69-70,091.61

Finding the Fourth Proportional to 115,430.82, 159,250.69 and 70,091.61

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Solution

The fourth proportional to 115,430.82, 159,250.69 and 70,091.61 is: 96,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,430.82 : 159,250.69 = 70,091.61 : x
  2. Step 2: Convert to fraction form
    115,430.82/159,250.69 = 70,091.61/x
  3. Step 3: Cross multiply
    115,430.82x = 159,250.69 × 70,091.61
  4. Step 4: Simplify right side
    115,430.82x = 11,162,137,255.71
  5. Step 5: Solve for x
    x = 11,162,137,255.71/115,430.82
  6. Step 6: Final answer
    x = 96,699.80

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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.