Home / 154,811.40-232,217.10-135,128.40

Finding the Fourth Proportional to 154,811.40, 232,217.10 and 135,128.40

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Solution

The fourth proportional to 154,811.40, 232,217.10 and 135,128.40 is: 202,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,811.40 : 232,217.10 = 135,128.40 : x
  2. Step 2: Convert to fraction form
    154,811.40/232,217.10 = 135,128.40/x
  3. Step 3: Cross multiply
    154,811.40x = 232,217.10 × 135,128.40
  4. Step 4: Simplify right side
    154,811.40x = 31,379,125,175.64
  5. Step 5: Solve for x
    x = 31,379,125,175.64/154,811.40
  6. Step 6: Final answer
    x = 202,692.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.