Home / 155,438.40-233,157.60-102,907.20

Finding the Fourth Proportional to 155,438.40, 233,157.60 and 102,907.20

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Solution

The fourth proportional to 155,438.40, 233,157.60 and 102,907.20 is: 154,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,438.40 : 233,157.60 = 102,907.20 : x
  2. Step 2: Convert to fraction form
    155,438.40/233,157.60 = 102,907.20/x
  3. Step 3: Cross multiply
    155,438.40x = 233,157.60 × 102,907.20
  4. Step 4: Simplify right side
    155,438.40x = 23,993,595,774.72
  5. Step 5: Solve for x
    x = 23,993,595,774.72/155,438.40
  6. Step 6: Final answer
    x = 154,360.80

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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.