Home / 163,639.08-245,431.08-45,322.38

Finding the Fourth Proportional to 163,639.08, 245,431.08 and 45,322.38

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Solution

The fourth proportional to 163,639.08, 245,431.08 and 45,322.38 is: 67,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,639.08 : 245,431.08 = 45,322.38 : x
  2. Step 2: Convert to fraction form
    163,639.08/245,431.08 = 45,322.38/x
  3. Step 3: Cross multiply
    163,639.08x = 245,431.08 × 45,322.38
  4. Step 4: Simplify right side
    163,639.08x = 11,123,520,671.57
  5. Step 5: Solve for x
    x = 11,123,520,671.57/163,639.08
  6. Step 6: Final answer
    x = 67,975.94

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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.