Home / 137,124.65-189,241.70-76,700.94

Finding the Fourth Proportional to 137,124.65, 189,241.70 and 76,700.94

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Solution

The fourth proportional to 137,124.65, 189,241.70 and 76,700.94 is: 105,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,124.65 : 189,241.70 = 76,700.94 : x
  2. Step 2: Convert to fraction form
    137,124.65/189,241.70 = 76,700.94/x
  3. Step 3: Cross multiply
    137,124.65x = 189,241.70 × 76,700.94
  4. Step 4: Simplify right side
    137,124.65x = 14,515,015,893.69
  5. Step 5: Solve for x
    x = 14,515,015,893.69/137,124.65
  6. Step 6: Final answer
    x = 105,852.71

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1.5x scale

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.