Home / 137,175.48-189,300.46-76,745.92

Finding the Fourth Proportional to 137,175.48, 189,300.46 and 76,745.92

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Solution

The fourth proportional to 137,175.48, 189,300.46 and 76,745.92 is: 105,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,175.48 : 189,300.46 = 76,745.92 : x
  2. Step 2: Convert to fraction form
    137,175.48/189,300.46 = 76,745.92/x
  3. Step 3: Cross multiply
    137,175.48x = 189,300.46 × 76,745.92
  4. Step 4: Simplify right side
    137,175.48x = 14,528,037,959.12
  5. Step 5: Solve for x
    x = 14,528,037,959.12/137,175.48
  6. Step 6: Final answer
    x = 105,908.42

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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.