Home / 213,037.80-319,556.70-134,500.20

Finding the Fourth Proportional to 213,037.80, 319,556.70 and 134,500.20

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Solution

The fourth proportional to 213,037.80, 319,556.70 and 134,500.20 is: 201,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,037.80 : 319,556.70 = 134,500.20 : x
  2. Step 2: Convert to fraction form
    213,037.80/319,556.70 = 134,500.20/x
  3. Step 3: Cross multiply
    213,037.80x = 319,556.70 × 134,500.20
  4. Step 4: Simplify right side
    213,037.80x = 42,980,440,061.34
  5. Step 5: Solve for x
    x = 42,980,440,061.34/213,037.80
  6. Step 6: Final answer
    x = 201,750.30

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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.