Home / 189,424.24-261,439.31-112,948.26

Finding the Fourth Proportional to 189,424.24, 261,439.31 and 112,948.26

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Solution

The fourth proportional to 189,424.24, 261,439.31 and 112,948.26 is: 155,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,424.24 : 261,439.31 = 112,948.26 : x
  2. Step 2: Convert to fraction form
    189,424.24/261,439.31 = 112,948.26/x
  3. Step 3: Cross multiply
    189,424.24x = 261,439.31 × 112,948.26
  4. Step 4: Simplify right side
    189,424.24x = 29,529,114,462.07
  5. Step 5: Solve for x
    x = 29,529,114,462.07/189,424.24
  6. Step 6: Final answer
    x = 155,888.79

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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.