Home / 163,439.56-245,152.68-45,107.86

Finding the Fourth Proportional to 163,439.56, 245,152.68 and 45,107.86

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Solution

The fourth proportional to 163,439.56, 245,152.68 and 45,107.86 is: 67,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,439.56 : 245,152.68 = 45,107.86 : x
  2. Step 2: Convert to fraction form
    163,439.56/245,152.68 = 45,107.86/x
  3. Step 3: Cross multiply
    163,439.56x = 245,152.68 × 45,107.86
  4. Step 4: Simplify right side
    163,439.56x = 11,058,312,768.06
  5. Step 5: Solve for x
    x = 11,058,312,768.06/163,439.56
  6. Step 6: Final answer
    x = 67,659.95

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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.