Home / 137,048.12-189,184.71-83,350.37

Finding the Fourth Proportional to 137,048.12, 189,184.71 and 83,350.37

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Solution

The fourth proportional to 137,048.12, 189,184.71 and 83,350.37 is: 115,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,048.12 : 189,184.71 = 83,350.37 : x
  2. Step 2: Convert to fraction form
    137,048.12/189,184.71 = 83,350.37/x
  3. Step 3: Cross multiply
    137,048.12x = 189,184.71 × 83,350.37
  4. Step 4: Simplify right side
    137,048.12x = 15,768,615,576.84
  5. Step 5: Solve for x
    x = 15,768,615,576.84/137,048.12
  6. Step 6: Final answer
    x = 115,058.97

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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.