Home / 136,671.56-188,607.06-76,240.70

Finding the Fourth Proportional to 136,671.56, 188,607.06 and 76,240.70

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Solution

The fourth proportional to 136,671.56, 188,607.06 and 76,240.70 is: 105,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,671.56 : 188,607.06 = 76,240.70 : x
  2. Step 2: Convert to fraction form
    136,671.56/188,607.06 = 76,240.70/x
  3. Step 3: Cross multiply
    136,671.56x = 188,607.06 × 76,240.70
  4. Step 4: Simplify right side
    136,671.56x = 14,379,534,279.34
  5. Step 5: Solve for x
    x = 14,379,534,279.34/136,671.56
  6. Step 6: Final answer
    x = 105,212.34

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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.