Home / 109,121.21-163,688.74-34,244.31

Finding the Fourth Proportional to 109,121.21, 163,688.74 and 34,244.31

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Solution

The fourth proportional to 109,121.21, 163,688.74 and 34,244.31 is: 51,368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,121.21 : 163,688.74 = 34,244.31 : x
  2. Step 2: Convert to fraction form
    109,121.21/163,688.74 = 34,244.31/x
  3. Step 3: Cross multiply
    109,121.21x = 163,688.74 × 34,244.31
  4. Step 4: Simplify right side
    109,121.21x = 5,605,407,870.46
  5. Step 5: Solve for x
    x = 5,605,407,870.46/109,121.21
  6. Step 6: Final answer
    x = 51,368.64

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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.