Home / 155,748.30-233,536.05-66,986.70

Finding the Fourth Proportional to 155,748.30, 233,536.05 and 66,986.70

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Solution

The fourth proportional to 155,748.30, 233,536.05 and 66,986.70 is: 100,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,748.30 : 233,536.05 = 66,986.70 : x
  2. Step 2: Convert to fraction form
    155,748.30/233,536.05 = 66,986.70/x
  3. Step 3: Cross multiply
    155,748.30x = 233,536.05 × 66,986.70
  4. Step 4: Simplify right side
    155,748.30x = 15,643,809,320.54
  5. Step 5: Solve for x
    x = 15,643,809,320.54/155,748.30
  6. Step 6: Final answer
    x = 100,442.89

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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.