Home / 155,431.70-233,147.01-66,627.62

Finding the Fourth Proportional to 155,431.70, 233,147.01 and 66,627.62

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Solution

The fourth proportional to 155,431.70, 233,147.01 and 66,627.62 is: 99,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,431.70 : 233,147.01 = 66,627.62 : x
  2. Step 2: Convert to fraction form
    155,431.70/233,147.01 = 66,627.62/x
  3. Step 3: Cross multiply
    155,431.70x = 233,147.01 × 66,627.62
  4. Step 4: Simplify right side
    155,431.70x = 15,534,030,386.42
  5. Step 5: Solve for x
    x = 15,534,030,386.42/155,431.70
  6. Step 6: Final answer
    x = 99,941.20

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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.