Home / 189,715.76-261,813.03-104,838.29

Finding the Fourth Proportional to 189,715.76, 261,813.03 and 104,838.29

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Solution

The fourth proportional to 189,715.76, 261,813.03 and 104,838.29 is: 144,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,715.76 : 261,813.03 = 104,838.29 : x
  2. Step 2: Convert to fraction form
    189,715.76/261,813.03 = 104,838.29/x
  3. Step 3: Cross multiply
    189,715.76x = 261,813.03 × 104,838.29
  4. Step 4: Simplify right side
    189,715.76x = 27,448,030,364.92
  5. Step 5: Solve for x
    x = 27,448,030,364.92/189,715.76
  6. Step 6: Final answer
    x = 144,679.76

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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.