Home / 137,835.24-190,160.10-81,225.96

Finding the Fourth Proportional to 137,835.24, 190,160.10 and 81,225.96

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Solution

The fourth proportional to 137,835.24, 190,160.10 and 81,225.96 is: 112,060.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,835.24 : 190,160.10 = 81,225.96 : x
  2. Step 2: Convert to fraction form
    137,835.24/190,160.10 = 81,225.96/x
  3. Step 3: Cross multiply
    137,835.24x = 190,160.10 × 81,225.96
  4. Step 4: Simplify right side
    137,835.24x = 15,445,936,676.20
  5. Step 5: Solve for x
    x = 15,445,936,676.20/137,835.24
  6. Step 6: Final answer
    x = 112,060.87

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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.