Home / 213,180.96-319,583.25-86,926.80

Finding the Fourth Proportional to 213,180.96, 319,583.25 and 86,926.80

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Solution

The fourth proportional to 213,180.96, 319,583.25 and 86,926.80 is: 130,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,180.96 : 319,583.25 = 86,926.80 : x
  2. Step 2: Convert to fraction form
    213,180.96/319,583.25 = 86,926.80/x
  3. Step 3: Cross multiply
    213,180.96x = 319,583.25 × 86,926.80
  4. Step 4: Simplify right side
    213,180.96x = 27,780,349,256.10
  5. Step 5: Solve for x
    x = 27,780,349,256.10/213,180.96
  6. Step 6: Final answer
    x = 130,313.46

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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.