Home / 119,259.50-178,757.76-77,039.60

Finding the Fourth Proportional to 119,259.50, 178,757.76 and 77,039.60

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Solution

The fourth proportional to 119,259.50, 178,757.76 and 77,039.60 is: 115,474.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,259.50 : 178,757.76 = 77,039.60 : x
  2. Step 2: Convert to fraction form
    119,259.50/178,757.76 = 77,039.60/x
  3. Step 3: Cross multiply
    119,259.50x = 178,757.76 × 77,039.60
  4. Step 4: Simplify right side
    119,259.50x = 13,771,426,327.30
  5. Step 5: Solve for x
    x = 13,771,426,327.30/119,259.50
  6. Step 6: Final answer
    x = 115,474.46

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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.