Home / 137,811.32-190,209.24-84,084.80

Finding the Fourth Proportional to 137,811.32, 190,209.24 and 84,084.80

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Solution

The fourth proportional to 137,811.32, 190,209.24 and 84,084.80 is: 116,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,811.32 : 190,209.24 = 84,084.80 : x
  2. Step 2: Convert to fraction form
    137,811.32/190,209.24 = 84,084.80/x
  3. Step 3: Cross multiply
    137,811.32x = 190,209.24 × 84,084.80
  4. Step 4: Simplify right side
    137,811.32x = 15,993,705,903.55
  5. Step 5: Solve for x
    x = 15,993,705,903.55/137,811.32
  6. Step 6: Final answer
    x = 116,055.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.