Home / 136,025.27-187,710.38-74,771.67

Finding the Fourth Proportional to 136,025.27, 187,710.38 and 74,771.67

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Solution

The fourth proportional to 136,025.27, 187,710.38 and 74,771.67 is: 103,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,025.27 : 187,710.38 = 74,771.67 : x
  2. Step 2: Convert to fraction form
    136,025.27/187,710.38 = 74,771.67/x
  3. Step 3: Cross multiply
    136,025.27x = 187,710.38 × 74,771.67
  4. Step 4: Simplify right side
    136,025.27x = 14,035,417,932.73
  5. Step 5: Solve for x
    x = 14,035,417,932.73/136,025.27
  6. Step 6: Final answer
    x = 103,182.43

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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.