Home / 140,054.32-193,274.92-76,392.08

Finding the Fourth Proportional to 140,054.32, 193,274.92 and 76,392.08

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Solution

The fourth proportional to 140,054.32, 193,274.92 and 76,392.08 is: 105,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,054.32 : 193,274.92 = 76,392.08 : x
  2. Step 2: Convert to fraction form
    140,054.32/193,274.92 = 76,392.08/x
  3. Step 3: Cross multiply
    140,054.32x = 193,274.92 × 76,392.08
  4. Step 4: Simplify right side
    140,054.32x = 14,764,673,150.63
  5. Step 5: Solve for x
    x = 14,764,673,150.63/140,054.32
  6. Step 6: Final answer
    x = 105,421.05

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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.