Home / 137,301.21-189,466.70-76,871.30

Finding the Fourth Proportional to 137,301.21, 189,466.70 and 76,871.30

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Solution

The fourth proportional to 137,301.21, 189,466.70 and 76,871.30 is: 106,077.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,301.21 : 189,466.70 = 76,871.30 : x
  2. Step 2: Convert to fraction form
    137,301.21/189,466.70 = 76,871.30/x
  3. Step 3: Cross multiply
    137,301.21x = 189,466.70 × 76,871.30
  4. Step 4: Simplify right side
    137,301.21x = 14,564,550,204.02
  5. Step 5: Solve for x
    x = 14,564,550,204.02/137,301.21
  6. Step 6: Final answer
    x = 106,077.36

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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.