Home / 189,515.34-261,531-104,632.92

Finding the Fourth Proportional to 189,515.34, 261,531 and 104,632.92

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Solution

The fourth proportional to 189,515.34, 261,531 and 104,632.92 is: 144,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,515.34 : 261,531 = 104,632.92 : x
  2. Step 2: Convert to fraction form
    189,515.34/261,531 = 104,632.92/x
  3. Step 3: Cross multiply
    189,515.34x = 261,531 × 104,632.92
  4. Step 4: Simplify right side
    189,515.34x = 27,364,752,200.52
  5. Step 5: Solve for x
    x = 27,364,752,200.52/189,515.34
  6. Step 6: Final answer
    x = 144,393.34

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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.