Home / 151,130.56-208,573.88-83,161.12

Finding the Fourth Proportional to 151,130.56, 208,573.88 and 83,161.12

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Solution

The fourth proportional to 151,130.56, 208,573.88 and 83,161.12 is: 114,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,130.56 : 208,573.88 = 83,161.12 : x
  2. Step 2: Convert to fraction form
    151,130.56/208,573.88 = 83,161.12/x
  3. Step 3: Cross multiply
    151,130.56x = 208,573.88 × 83,161.12
  4. Step 4: Simplify right side
    151,130.56x = 17,345,237,463.55
  5. Step 5: Solve for x
    x = 17,345,237,463.55/151,130.56
  6. Step 6: Final answer
    x = 114,769.89

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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.