Home / 218,725.16-301,840.66-118,123.16

Finding the Fourth Proportional to 218,725.16, 301,840.66 and 118,123.16

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Solution

The fourth proportional to 218,725.16, 301,840.66 and 118,123.16 is: 163,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,725.16 : 301,840.66 = 118,123.16 : x
  2. Step 2: Convert to fraction form
    218,725.16/301,840.66 = 118,123.16/x
  3. Step 3: Cross multiply
    218,725.16x = 301,840.66 × 118,123.16
  4. Step 4: Simplify right side
    218,725.16x = 35,654,372,575.69
  5. Step 5: Solve for x
    x = 35,654,372,575.69/218,725.16
  6. Step 6: Final answer
    x = 163,009.93

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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.