Home / 229,427.56-316,614.18-128,829.16

Finding the Fourth Proportional to 229,427.56, 316,614.18 and 128,829.16

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Solution

The fourth proportional to 229,427.56, 316,614.18 and 128,829.16 is: 177,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,427.56 : 316,614.18 = 128,829.16 : x
  2. Step 2: Convert to fraction form
    229,427.56/316,614.18 = 128,829.16/x
  3. Step 3: Cross multiply
    229,427.56x = 316,614.18 × 128,829.16
  4. Step 4: Simplify right side
    229,427.56x = 40,789,138,853.49
  5. Step 5: Solve for x
    x = 40,789,138,853.49/229,427.56
  6. Step 6: Final answer
    x = 177,786.57

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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.