Home / 137,747.39-190,076.77-77,324.67

Finding the Fourth Proportional to 137,747.39, 190,076.77 and 77,324.67

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Solution

The fourth proportional to 137,747.39, 190,076.77 and 77,324.67 is: 106,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,747.39 : 190,076.77 = 77,324.67 : x
  2. Step 2: Convert to fraction form
    137,747.39/190,076.77 = 77,324.67/x
  3. Step 3: Cross multiply
    137,747.39x = 190,076.77 × 77,324.67
  4. Step 4: Simplify right side
    137,747.39x = 14,697,623,611.57
  5. Step 5: Solve for x
    x = 14,697,623,611.57/137,747.39
  6. Step 6: Final answer
    x = 106,699.84

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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.