Home / 85,215.15-127,636.83-70,256.07

Finding the Fourth Proportional to 85,215.15, 127,636.83 and 70,256.07

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Solution

The fourth proportional to 85,215.15, 127,636.83 and 70,256.07 is: 105,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,215.15 : 127,636.83 = 70,256.07 : x
  2. Step 2: Convert to fraction form
    85,215.15/127,636.83 = 70,256.07/x
  3. Step 3: Cross multiply
    85,215.15x = 127,636.83 × 70,256.07
  4. Step 4: Simplify right side
    85,215.15x = 8,967,262,063.06
  5. Step 5: Solve for x
    x = 8,967,262,063.06/85,215.15
  6. Step 6: Final answer
    x = 105,230.84

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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.