Home / 140,156.10-193,415.58-76,493.88

Finding the Fourth Proportional to 140,156.10, 193,415.58 and 76,493.88

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Solution

The fourth proportional to 140,156.10, 193,415.58 and 76,493.88 is: 105,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,156.10 : 193,415.58 = 76,493.88 : x
  2. Step 2: Convert to fraction form
    140,156.10/193,415.58 = 76,493.88/x
  3. Step 3: Cross multiply
    140,156.10x = 193,415.58 × 76,493.88
  4. Step 4: Simplify right side
    140,156.10x = 14,795,108,166.65
  5. Step 5: Solve for x
    x = 14,795,108,166.65/140,156.10
  6. Step 6: Final answer
    x = 105,561.64

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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.