Home / 189,123.24-260,991.28-104,240.31

Finding the Fourth Proportional to 189,123.24, 260,991.28 and 104,240.31

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Solution

The fourth proportional to 189,123.24, 260,991.28 and 104,240.31 is: 143,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,123.24 : 260,991.28 = 104,240.31 : x
  2. Step 2: Convert to fraction form
    189,123.24/260,991.28 = 104,240.31/x
  3. Step 3: Cross multiply
    189,123.24x = 260,991.28 × 104,240.31
  4. Step 4: Simplify right side
    189,123.24x = 27,205,811,934.50
  5. Step 5: Solve for x
    x = 27,205,811,934.50/189,123.24
  6. Step 6: Final answer
    x = 143,852.29

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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.