Home / 212,913.08-319,315.11-63,118.34

Finding the Fourth Proportional to 212,913.08, 319,315.11 and 63,118.34

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Solution

The fourth proportional to 212,913.08, 319,315.11 and 63,118.34 is: 94,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,913.08 : 319,315.11 = 63,118.34 : x
  2. Step 2: Convert to fraction form
    212,913.08/319,315.11 = 63,118.34/x
  3. Step 3: Cross multiply
    212,913.08x = 319,315.11 × 63,118.34
  4. Step 4: Simplify right side
    212,913.08x = 20,154,639,680.12
  5. Step 5: Solve for x
    x = 20,154,639,680.12/212,913.08
  6. Step 6: Final answer
    x = 94,661.35

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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.