Home / 136,621.40-188,509.02-82,934.68

Finding the Fourth Proportional to 136,621.40, 188,509.02 and 82,934.68

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Solution

The fourth proportional to 136,621.40, 188,509.02 and 82,934.68 is: 114,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,621.40 : 188,509.02 = 82,934.68 : x
  2. Step 2: Convert to fraction form
    136,621.40/188,509.02 = 82,934.68/x
  3. Step 3: Cross multiply
    136,621.40x = 188,509.02 × 82,934.68
  4. Step 4: Simplify right side
    136,621.40x = 15,633,935,250.81
  5. Step 5: Solve for x
    x = 15,633,935,250.81/136,621.40
  6. Step 6: Final answer
    x = 114,432.55

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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.