Home / 154,038.40-231,057.60-133,043.20

Finding the Fourth Proportional to 154,038.40, 231,057.60 and 133,043.20

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Solution

The fourth proportional to 154,038.40, 231,057.60 and 133,043.20 is: 199,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,038.40 : 231,057.60 = 133,043.20 : x
  2. Step 2: Convert to fraction form
    154,038.40/231,057.60 = 133,043.20/x
  3. Step 3: Cross multiply
    154,038.40x = 231,057.60 × 133,043.20
  4. Step 4: Simplify right side
    154,038.40x = 30,740,642,488.32
  5. Step 5: Solve for x
    x = 30,740,642,488.32/154,038.40
  6. Step 6: Final answer
    x = 199,564.80

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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.