Home / 189,167.40-261,043.07-103,124.52

Finding the Fourth Proportional to 189,167.40, 261,043.07 and 103,124.52

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Solution

The fourth proportional to 189,167.40, 261,043.07 and 103,124.52 is: 142,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,167.40 : 261,043.07 = 103,124.52 : x
  2. Step 2: Convert to fraction form
    189,167.40/261,043.07 = 103,124.52/x
  3. Step 3: Cross multiply
    189,167.40x = 261,043.07 × 103,124.52
  4. Step 4: Simplify right side
    189,167.40x = 26,919,940,777.45
  5. Step 5: Solve for x
    x = 26,919,940,777.45/189,167.40
  6. Step 6: Final answer
    x = 142,307.51

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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.