Home / 211,638.80-317,208-93,062.12

Finding the Fourth Proportional to 211,638.80, 317,208 and 93,062.12

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Solution

The fourth proportional to 211,638.80, 317,208 and 93,062.12 is: 139,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,638.80 : 317,208 = 93,062.12 : x
  2. Step 2: Convert to fraction form
    211,638.80/317,208 = 93,062.12/x
  3. Step 3: Cross multiply
    211,638.80x = 317,208 × 93,062.12
  4. Step 4: Simplify right side
    211,638.80x = 29,520,048,960.96
  5. Step 5: Solve for x
    x = 29,520,048,960.96/211,638.80
  6. Step 6: Final answer
    x = 139,483.16

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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.