Home / 140,056.13-193,276.26-76,392.56

Finding the Fourth Proportional to 140,056.13, 193,276.26 and 76,392.56

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Solution

The fourth proportional to 140,056.13, 193,276.26 and 76,392.56 is: 105,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,056.13 : 193,276.26 = 76,392.56 : x
  2. Step 2: Convert to fraction form
    140,056.13/193,276.26 = 76,392.56/x
  3. Step 3: Cross multiply
    140,056.13x = 193,276.26 × 76,392.56
  4. Step 4: Simplify right side
    140,056.13x = 14,764,868,771.82
  5. Step 5: Solve for x
    x = 14,764,868,771.82/140,056.13
  6. Step 6: Final answer
    x = 105,421.08

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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.