Home / 229,372.05-316,533.43-128,770.05

Finding the Fourth Proportional to 229,372.05, 316,533.43 and 128,770.05

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Solution

The fourth proportional to 229,372.05, 316,533.43 and 128,770.05 is: 177,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,372.05 : 316,533.43 = 128,770.05 : x
  2. Step 2: Convert to fraction form
    229,372.05/316,533.43 = 128,770.05/x
  3. Step 3: Cross multiply
    229,372.05x = 316,533.43 × 128,770.05
  4. Step 4: Simplify right side
    229,372.05x = 40,760,025,607.77
  5. Step 5: Solve for x
    x = 40,760,025,607.77/229,372.05
  6. Step 6: Final answer
    x = 177,702.67

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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.