Home / 155,320.73-233,154.03-80,420.76

Finding the Fourth Proportional to 155,320.73, 233,154.03 and 80,420.76

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Solution

The fourth proportional to 155,320.73, 233,154.03 and 80,420.76 is: 120,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,320.73 : 233,154.03 = 80,420.76 : x
  2. Step 2: Convert to fraction form
    155,320.73/233,154.03 = 80,420.76/x
  3. Step 3: Cross multiply
    155,320.73x = 233,154.03 × 80,420.76
  4. Step 4: Simplify right side
    155,320.73x = 18,750,424,289.66
  5. Step 5: Solve for x
    x = 18,750,424,289.66/155,320.73
  6. Step 6: Final answer
    x = 120,720.68

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1.5x scale

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.