Home / 210,014.25-314,964.85-76,895.20

Finding the Fourth Proportional to 210,014.25, 314,964.85 and 76,895.20

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Solution

The fourth proportional to 210,014.25, 314,964.85 and 76,895.20 is: 115,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,014.25 : 314,964.85 = 76,895.20 : x
  2. Step 2: Convert to fraction form
    210,014.25/314,964.85 = 76,895.20/x
  3. Step 3: Cross multiply
    210,014.25x = 314,964.85 × 76,895.20
  4. Step 4: Simplify right side
    210,014.25x = 24,219,285,133.72
  5. Step 5: Solve for x
    x = 24,219,285,133.72/210,014.25
  6. Step 6: Final answer
    x = 115,322.10

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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.