Home / 137,453.94-189,686.13-83,738.91

Finding the Fourth Proportional to 137,453.94, 189,686.13 and 83,738.91

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Solution

The fourth proportional to 137,453.94, 189,686.13 and 83,738.91 is: 115,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,453.94 : 189,686.13 = 83,738.91 : x
  2. Step 2: Convert to fraction form
    137,453.94/189,686.13 = 83,738.91/x
  3. Step 3: Cross multiply
    137,453.94x = 189,686.13 × 83,738.91
  4. Step 4: Simplify right side
    137,453.94x = 15,884,109,768.32
  5. Step 5: Solve for x
    x = 15,884,109,768.32/137,453.94
  6. Step 6: Final answer
    x = 115,559.51

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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.