Home / 154,438.85-213,532.28-135,263.64

Finding the Fourth Proportional to 154,438.85, 213,532.28 and 135,263.64

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Solution

The fourth proportional to 154,438.85, 213,532.28 and 135,263.64 is: 187,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,438.85 : 213,532.28 = 135,263.64 : x
  2. Step 2: Convert to fraction form
    154,438.85/213,532.28 = 135,263.64/x
  3. Step 3: Cross multiply
    154,438.85x = 213,532.28 × 135,263.64
  4. Step 4: Simplify right side
    154,438.85x = 28,883,152,773.98
  5. Step 5: Solve for x
    x = 28,883,152,773.98/154,438.85
  6. Step 6: Final answer
    x = 187,020.00

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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.