Home / 211,456.76-317,106.02-85,054.25

Finding the Fourth Proportional to 211,456.76, 317,106.02 and 85,054.25

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Solution

The fourth proportional to 211,456.76, 317,106.02 and 85,054.25 is: 127,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,456.76 : 317,106.02 = 85,054.25 : x
  2. Step 2: Convert to fraction form
    211,456.76/317,106.02 = 85,054.25/x
  3. Step 3: Cross multiply
    211,456.76x = 317,106.02 × 85,054.25
  4. Step 4: Simplify right side
    211,456.76x = 26,971,215,706.99
  5. Step 5: Solve for x
    x = 26,971,215,706.99/211,456.76
  6. Step 6: Final answer
    x = 127,549.56

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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.