Home / 224,327.70-309,543.93-128,840.55

Finding the Fourth Proportional to 224,327.70, 309,543.93 and 128,840.55

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Solution

The fourth proportional to 224,327.70, 309,543.93 and 128,840.55 is: 177,783.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,327.70 : 309,543.93 = 128,840.55 : x
  2. Step 2: Convert to fraction form
    224,327.70/309,543.93 = 128,840.55/x
  3. Step 3: Cross multiply
    224,327.70x = 309,543.93 × 128,840.55
  4. Step 4: Simplify right side
    224,327.70x = 39,881,810,190.36
  5. Step 5: Solve for x
    x = 39,881,810,190.36/224,327.70
  6. Step 6: Final answer
    x = 177,783.71

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1.5x scale

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.