Home / 213,135.90-319,586.10-134,080.98

Finding the Fourth Proportional to 213,135.90, 319,586.10 and 134,080.98

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Solution

The fourth proportional to 213,135.90, 319,586.10 and 134,080.98 is: 201,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,135.90 : 319,586.10 = 134,080.98 : x
  2. Step 2: Convert to fraction form
    213,135.90/319,586.10 = 134,080.98/x
  3. Step 3: Cross multiply
    213,135.90x = 319,586.10 × 134,080.98
  4. Step 4: Simplify right side
    213,135.90x = 42,850,417,482.38
  5. Step 5: Solve for x
    x = 42,850,417,482.38/213,135.90
  6. Step 6: Final answer
    x = 201,047.40

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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.