Home / 151,748.37-209,412.80-83,765.40

Finding the Fourth Proportional to 151,748.37, 209,412.80 and 83,765.40

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Solution

The fourth proportional to 151,748.37, 209,412.80 and 83,765.40 is: 115,596.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,748.37 : 209,412.80 = 83,765.40 : x
  2. Step 2: Convert to fraction form
    151,748.37/209,412.80 = 83,765.40/x
  3. Step 3: Cross multiply
    151,748.37x = 209,412.80 × 83,765.40
  4. Step 4: Simplify right side
    151,748.37x = 17,541,546,538.29
  5. Step 5: Solve for x
    x = 17,541,546,538.29/151,748.37
  6. Step 6: Final answer
    x = 115,596.28

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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.