Home / 136,271.04-188,025.30-79,671.48

Finding the Fourth Proportional to 136,271.04, 188,025.30 and 79,671.48

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Solution

The fourth proportional to 136,271.04, 188,025.30 and 79,671.48 is: 109,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,271.04 : 188,025.30 = 79,671.48 : x
  2. Step 2: Convert to fraction form
    136,271.04/188,025.30 = 79,671.48/x
  3. Step 3: Cross multiply
    136,271.04x = 188,025.30 × 79,671.48
  4. Step 4: Simplify right side
    136,271.04x = 14,980,253,928.44
  5. Step 5: Solve for x
    x = 14,980,253,928.44/136,271.04
  6. Step 6: Final answer
    x = 109,929.84

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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.