Home / 134,880.28-186,132.45-74,450.86

Finding the Fourth Proportional to 134,880.28, 186,132.45 and 74,450.86

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Solution

The fourth proportional to 134,880.28, 186,132.45 and 74,450.86 is: 102,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.28 : 186,132.45 = 74,450.86 : x
  2. Step 2: Convert to fraction form
    134,880.28/186,132.45 = 74,450.86/x
  3. Step 3: Cross multiply
    134,880.28x = 186,132.45 × 74,450.86
  4. Step 4: Simplify right side
    134,880.28x = 13,857,720,976.41
  5. Step 5: Solve for x
    x = 13,857,720,976.41/134,880.28
  6. Step 6: Final answer
    x = 102,740.90

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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.