Home / 134,520.75-185,638.64-77,964.93

Finding the Fourth Proportional to 134,520.75, 185,638.64 and 77,964.93

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Solution

The fourth proportional to 134,520.75, 185,638.64 and 77,964.93 is: 107,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,520.75 : 185,638.64 = 77,964.93 : x
  2. Step 2: Convert to fraction form
    134,520.75/185,638.64 = 77,964.93/x
  3. Step 3: Cross multiply
    134,520.75x = 185,638.64 × 77,964.93
  4. Step 4: Simplify right side
    134,520.75x = 14,473,303,183.07
  5. Step 5: Solve for x
    x = 14,473,303,183.07/134,520.75
  6. Step 6: Final answer
    x = 107,591.60

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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.