Home / 136,829.58-188,822.86-76,401.18

Finding the Fourth Proportional to 136,829.58, 188,822.86 and 76,401.18

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Solution

The fourth proportional to 136,829.58, 188,822.86 and 76,401.18 is: 105,432.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,829.58 : 188,822.86 = 76,401.18 : x
  2. Step 2: Convert to fraction form
    136,829.58/188,822.86 = 76,401.18/x
  3. Step 3: Cross multiply
    136,829.58x = 188,822.86 × 76,401.18
  4. Step 4: Simplify right side
    136,829.58x = 14,426,288,893.39
  5. Step 5: Solve for x
    x = 14,426,288,893.39/136,829.58
  6. Step 6: Final answer
    x = 105,432.53

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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.