Home / 108,126.70-149,215.16-60,381.86

Finding the Fourth Proportional to 108,126.70, 149,215.16 and 60,381.86

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Solution

The fourth proportional to 108,126.70, 149,215.16 and 60,381.86 is: 83,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,126.70 : 149,215.16 = 60,381.86 : x
  2. Step 2: Convert to fraction form
    108,126.70/149,215.16 = 60,381.86/x
  3. Step 3: Cross multiply
    108,126.70x = 149,215.16 × 60,381.86
  4. Step 4: Simplify right side
    108,126.70x = 9,009,888,305.88
  5. Step 5: Solve for x
    x = 9,009,888,305.88/108,126.70
  6. Step 6: Final answer
    x = 83,327.14

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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.