Home / 133,221.93-183,847.55-72,792.57

Finding the Fourth Proportional to 133,221.93, 183,847.55 and 72,792.57

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Solution

The fourth proportional to 133,221.93, 183,847.55 and 72,792.57 is: 100,454.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,221.93 : 183,847.55 = 72,792.57 : x
  2. Step 2: Convert to fraction form
    133,221.93/183,847.55 = 72,792.57/x
  3. Step 3: Cross multiply
    133,221.93x = 183,847.55 × 72,792.57
  4. Step 4: Simplify right side
    133,221.93x = 13,382,735,652.70
  5. Step 5: Solve for x
    x = 13,382,735,652.70/133,221.93
  6. Step 6: Final answer
    x = 100,454.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.