Home / 213,001.08-319,432.24-70,808.21

Finding the Fourth Proportional to 213,001.08, 319,432.24 and 70,808.21

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Solution

The fourth proportional to 213,001.08, 319,432.24 and 70,808.21 is: 106,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,001.08 : 319,432.24 = 70,808.21 : x
  2. Step 2: Convert to fraction form
    213,001.08/319,432.24 = 70,808.21/x
  3. Step 3: Cross multiply
    213,001.08x = 319,432.24 × 70,808.21
  4. Step 4: Simplify right side
    213,001.08x = 22,618,424,819.91
  5. Step 5: Solve for x
    x = 22,618,424,819.91/213,001.08
  6. Step 6: Final answer
    x = 106,189.25

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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.