Home / 211,641.15-317,379.03-76,673.18

Finding the Fourth Proportional to 211,641.15, 317,379.03 and 76,673.18

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Solution

The fourth proportional to 211,641.15, 317,379.03 and 76,673.18 is: 114,979.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,641.15 : 317,379.03 = 76,673.18 : x
  2. Step 2: Convert to fraction form
    211,641.15/317,379.03 = 76,673.18/x
  3. Step 3: Cross multiply
    211,641.15x = 317,379.03 × 76,673.18
  4. Step 4: Simplify right side
    211,641.15x = 24,334,459,495.42
  5. Step 5: Solve for x
    x = 24,334,459,495.42/211,641.15
  6. Step 6: Final answer
    x = 114,979.81

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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.