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Finding the Fourth Proportional to 163,373.70, 245,060.55 and 123,456.90

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Solution

The fourth proportional to 163,373.70, 245,060.55 and 123,456.90 is: 185,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,373.70 : 245,060.55 = 123,456.90 : x
  2. Step 2: Convert to fraction form
    163,373.70/245,060.55 = 123,456.90/x
  3. Step 3: Cross multiply
    163,373.70x = 245,060.55 × 123,456.90
  4. Step 4: Simplify right side
    163,373.70x = 30,254,415,815.30
  5. Step 5: Solve for x
    x = 30,254,415,815.30/163,373.70
  6. Step 6: Final answer
    x = 185,185.35

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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.