Home / 138,903.03-208,223.33-126,174.69

Finding the Fourth Proportional to 138,903.03, 208,223.33 and 126,174.69

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Solution

The fourth proportional to 138,903.03, 208,223.33 and 126,174.69 is: 189,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,903.03 : 208,223.33 = 126,174.69 : x
  2. Step 2: Convert to fraction form
    138,903.03/208,223.33 = 126,174.69/x
  3. Step 3: Cross multiply
    138,903.03x = 208,223.33 × 126,174.69
  4. Step 4: Simplify right side
    138,903.03x = 26,272,513,482.64
  5. Step 5: Solve for x
    x = 26,272,513,482.64/138,903.03
  6. Step 6: Final answer
    x = 189,142.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.