Home / 140,050.11-193,271.43-76,387.89

Finding the Fourth Proportional to 140,050.11, 193,271.43 and 76,387.89

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Solution

The fourth proportional to 140,050.11, 193,271.43 and 76,387.89 is: 105,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,050.11 : 193,271.43 = 76,387.89 : x
  2. Step 2: Convert to fraction form
    140,050.11/193,271.43 = 76,387.89/x
  3. Step 3: Cross multiply
    140,050.11x = 193,271.43 × 76,387.89
  4. Step 4: Simplify right side
    140,050.11x = 14,763,596,734.98
  5. Step 5: Solve for x
    x = 14,763,596,734.98/140,050.11
  6. Step 6: Final answer
    x = 105,416.53

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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.