Home / 137,228.88-189,384.18-76,798.27

Finding the Fourth Proportional to 137,228.88, 189,384.18 and 76,798.27

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Solution

The fourth proportional to 137,228.88, 189,384.18 and 76,798.27 is: 105,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,228.88 : 189,384.18 = 76,798.27 : x
  2. Step 2: Convert to fraction form
    137,228.88/189,384.18 = 76,798.27/x
  3. Step 3: Cross multiply
    137,228.88x = 189,384.18 × 76,798.27
  4. Step 4: Simplify right side
    137,228.88x = 14,544,377,389.37
  5. Step 5: Solve for x
    x = 14,544,377,389.37/137,228.88
  6. Step 6: Final answer
    x = 105,986.27

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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.