Home / 213,075.12-319,557.39-63,280.20

Finding the Fourth Proportional to 213,075.12, 319,557.39 and 63,280.20

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Solution

The fourth proportional to 213,075.12, 319,557.39 and 63,280.20 is: 94,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,075.12 : 319,557.39 = 63,280.20 : x
  2. Step 2: Convert to fraction form
    213,075.12/319,557.39 = 63,280.20/x
  3. Step 3: Cross multiply
    213,075.12x = 319,557.39 × 63,280.20
  4. Step 4: Simplify right side
    213,075.12x = 20,221,653,952.89
  5. Step 5: Solve for x
    x = 20,221,653,952.89/213,075.12
  6. Step 6: Final answer
    x = 94,903.87

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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.