Home / 211,632.09-317,551.93-99,321.44

Finding the Fourth Proportional to 211,632.09, 317,551.93 and 99,321.44

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Solution

The fourth proportional to 211,632.09, 317,551.93 and 99,321.44 is: 149,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,632.09 : 317,551.93 = 99,321.44 : x
  2. Step 2: Convert to fraction form
    211,632.09/317,551.93 = 99,321.44/x
  3. Step 3: Cross multiply
    211,632.09x = 317,551.93 × 99,321.44
  4. Step 4: Simplify right side
    211,632.09x = 31,539,713,126.32
  5. Step 5: Solve for x
    x = 31,539,713,126.32/211,632.09
  6. Step 6: Final answer
    x = 149,030.86

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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.