Home / 163,679.12-245,491.34-45,362.42

Finding the Fourth Proportional to 163,679.12, 245,491.34 and 45,362.42

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Solution

The fourth proportional to 163,679.12, 245,491.34 and 45,362.42 is: 68,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,679.12 : 245,491.34 = 45,362.42 : x
  2. Step 2: Convert to fraction form
    163,679.12/245,491.34 = 45,362.42/x
  3. Step 3: Cross multiply
    163,679.12x = 245,491.34 × 45,362.42
  4. Step 4: Simplify right side
    163,679.12x = 11,136,079,817.17
  5. Step 5: Solve for x
    x = 11,136,079,817.17/163,679.12
  6. Step 6: Final answer
    x = 68,036.05

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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.