Home / 137,062.80-189,150.60-76,633.59

Finding the Fourth Proportional to 137,062.80, 189,150.60 and 76,633.59

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Solution

The fourth proportional to 137,062.80, 189,150.60 and 76,633.59 is: 105,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,062.80 : 189,150.60 = 76,633.59 : x
  2. Step 2: Convert to fraction form
    137,062.80/189,150.60 = 76,633.59/x
  3. Step 3: Cross multiply
    137,062.80x = 189,150.60 × 76,633.59
  4. Step 4: Simplify right side
    137,062.80x = 14,495,289,528.65
  5. Step 5: Solve for x
    x = 14,495,289,528.65/137,062.80
  6. Step 6: Final answer
    x = 105,756.55

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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.