Home / 155,538.60-233,307.90-76,806.60

Finding the Fourth Proportional to 155,538.60, 233,307.90 and 76,806.60

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Solution

The fourth proportional to 155,538.60, 233,307.90 and 76,806.60 is: 115,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,538.60 : 233,307.90 = 76,806.60 : x
  2. Step 2: Convert to fraction form
    155,538.60/233,307.90 = 76,806.60/x
  3. Step 3: Cross multiply
    155,538.60x = 233,307.90 × 76,806.60
  4. Step 4: Simplify right side
    155,538.60x = 17,919,586,552.14
  5. Step 5: Solve for x
    x = 17,919,586,552.14/155,538.60
  6. Step 6: Final answer
    x = 115,209.90

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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.