Home / 215,967.10-323,950.65-103,628.20

Finding the Fourth Proportional to 215,967.10, 323,950.65 and 103,628.20

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Solution

The fourth proportional to 215,967.10, 323,950.65 and 103,628.20 is: 155,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,967.10 : 323,950.65 = 103,628.20 : x
  2. Step 2: Convert to fraction form
    215,967.10/323,950.65 = 103,628.20/x
  3. Step 3: Cross multiply
    215,967.10x = 323,950.65 × 103,628.20
  4. Step 4: Simplify right side
    215,967.10x = 33,570,422,748.33
  5. Step 5: Solve for x
    x = 33,570,422,748.33/215,967.10
  6. Step 6: Final answer
    x = 155,442.30

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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.