Home / 85,235.41-127,666.68-70,276.33

Finding the Fourth Proportional to 85,235.41, 127,666.68 and 70,276.33

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Solution

The fourth proportional to 85,235.41, 127,666.68 and 70,276.33 is: 105,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235.41 : 127,666.68 = 70,276.33 : x
  2. Step 2: Convert to fraction form
    85,235.41/127,666.68 = 70,276.33/x
  3. Step 3: Cross multiply
    85,235.41x = 127,666.68 × 70,276.33
  4. Step 4: Simplify right side
    85,235.41x = 8,971,945,733.68
  5. Step 5: Solve for x
    x = 8,971,945,733.68/85,235.41
  6. Step 6: Final answer
    x = 105,260.78

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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.