Home / 136,532.68-188,421.47-76,103.76

Finding the Fourth Proportional to 136,532.68, 188,421.47 and 76,103.76

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Solution

The fourth proportional to 136,532.68, 188,421.47 and 76,103.76 is: 105,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,532.68 : 188,421.47 = 76,103.76 : x
  2. Step 2: Convert to fraction form
    136,532.68/188,421.47 = 76,103.76/x
  3. Step 3: Cross multiply
    136,532.68x = 188,421.47 × 76,103.76
  4. Step 4: Simplify right side
    136,532.68x = 14,339,582,311.39
  5. Step 5: Solve for x
    x = 14,339,582,311.39/136,532.68
  6. Step 6: Final answer
    x = 105,026.74

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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.