Home / 139,743.74-192,839.92-76,081.34

Finding the Fourth Proportional to 139,743.74, 192,839.92 and 76,081.34

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Solution

The fourth proportional to 139,743.74, 192,839.92 and 76,081.34 is: 104,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743.74 : 192,839.92 = 76,081.34 : x
  2. Step 2: Convert to fraction form
    139,743.74/192,839.92 = 76,081.34/x
  3. Step 3: Cross multiply
    139,743.74x = 192,839.92 × 76,081.34
  4. Step 4: Simplify right side
    139,743.74x = 14,671,518,364.69
  5. Step 5: Solve for x
    x = 14,671,518,364.69/139,743.74
  6. Step 6: Final answer
    x = 104,988.74

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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.