Home / 163,902.20-245,853.30-156,990.20

Finding the Fourth Proportional to 163,902.20, 245,853.30 and 156,990.20

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Solution

The fourth proportional to 163,902.20, 245,853.30 and 156,990.20 is: 235,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,902.20 : 245,853.30 = 156,990.20 : x
  2. Step 2: Convert to fraction form
    163,902.20/245,853.30 = 156,990.20/x
  3. Step 3: Cross multiply
    163,902.20x = 245,853.30 × 156,990.20
  4. Step 4: Simplify right side
    163,902.20x = 38,596,558,737.66
  5. Step 5: Solve for x
    x = 38,596,558,737.66/163,902.20
  6. Step 6: Final answer
    x = 235,485.30

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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.