Home / 136,432.21-188,282.12-76,002.83

Finding the Fourth Proportional to 136,432.21, 188,282.12 and 76,002.83

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Solution

The fourth proportional to 136,432.21, 188,282.12 and 76,002.83 is: 104,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,432.21 : 188,282.12 = 76,002.83 : x
  2. Step 2: Convert to fraction form
    136,432.21/188,282.12 = 76,002.83/x
  3. Step 3: Cross multiply
    136,432.21x = 188,282.12 × 76,002.83
  4. Step 4: Simplify right side
    136,432.21x = 14,309,973,578.39
  5. Step 5: Solve for x
    x = 14,309,973,578.39/136,432.21
  6. Step 6: Final answer
    x = 104,887.07

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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.