Home / 109,288.50-163,823.31-42,636.93

Finding the Fourth Proportional to 109,288.50, 163,823.31 and 42,636.93

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Solution

The fourth proportional to 109,288.50, 163,823.31 and 42,636.93 is: 63,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,288.50 : 163,823.31 = 42,636.93 : x
  2. Step 2: Convert to fraction form
    109,288.50/163,823.31 = 42,636.93/x
  3. Step 3: Cross multiply
    109,288.50x = 163,823.31 × 42,636.93
  4. Step 4: Simplify right side
    109,288.50x = 6,984,923,000.84
  5. Step 5: Solve for x
    x = 6,984,923,000.84/109,288.50
  6. Step 6: Final answer
    x = 63,912.70

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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.