Home / 154,440.85-213,535.04-135,265.64

Finding the Fourth Proportional to 154,440.85, 213,535.04 and 135,265.64

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Solution

The fourth proportional to 154,440.85, 213,535.04 and 135,265.64 is: 187,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440.85 : 213,535.04 = 135,265.64 : x
  2. Step 2: Convert to fraction form
    154,440.85/213,535.04 = 135,265.64/x
  3. Step 3: Cross multiply
    154,440.85x = 213,535.04 × 135,265.64
  4. Step 4: Simplify right side
    154,440.85x = 28,883,953,848.03
  5. Step 5: Solve for x
    x = 28,883,953,848.03/154,440.85
  6. Step 6: Final answer
    x = 187,022.76

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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.