Home / 140,461.88-193,837.46-76,800.20

Finding the Fourth Proportional to 140,461.88, 193,837.46 and 76,800.20

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Solution

The fourth proportional to 140,461.88, 193,837.46 and 76,800.20 is: 105,984.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,461.88 : 193,837.46 = 76,800.20 : x
  2. Step 2: Convert to fraction form
    140,461.88/193,837.46 = 76,800.20/x
  3. Step 3: Cross multiply
    140,461.88x = 193,837.46 × 76,800.20
  4. Step 4: Simplify right side
    140,461.88x = 14,886,754,342.30
  5. Step 5: Solve for x
    x = 14,886,754,342.30/140,461.88
  6. Step 6: Final answer
    x = 105,984.31

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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.