Home / 137,056.05-189,141.57-76,629.24

Finding the Fourth Proportional to 137,056.05, 189,141.57 and 76,629.24

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Solution

The fourth proportional to 137,056.05, 189,141.57 and 76,629.24 is: 105,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,056.05 : 189,141.57 = 76,629.24 : x
  2. Step 2: Convert to fraction form
    137,056.05/189,141.57 = 76,629.24/x
  3. Step 3: Cross multiply
    137,056.05x = 189,141.57 × 76,629.24
  4. Step 4: Simplify right side
    137,056.05x = 14,493,774,761.51
  5. Step 5: Solve for x
    x = 14,493,774,761.51/137,056.05
  6. Step 6: Final answer
    x = 105,750.71

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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.