Home / 137,928.42-190,335.83-84,303.18

Finding the Fourth Proportional to 137,928.42, 190,335.83 and 84,303.18

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Solution

The fourth proportional to 137,928.42, 190,335.83 and 84,303.18 is: 116,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,928.42 : 190,335.83 = 84,303.18 : x
  2. Step 2: Convert to fraction form
    137,928.42/190,335.83 = 84,303.18/x
  3. Step 3: Cross multiply
    137,928.42x = 190,335.83 × 84,303.18
  4. Step 4: Simplify right side
    137,928.42x = 16,045,915,315.42
  5. Step 5: Solve for x
    x = 16,045,915,315.42/137,928.42
  6. Step 6: Final answer
    x = 116,335.09

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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.