Home / 130,177.96-179,573.29-75,724

Finding the Fourth Proportional to 130,177.96, 179,573.29 and 75,724

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Solution

The fourth proportional to 130,177.96, 179,573.29 and 75,724 is: 104,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,177.96 : 179,573.29 = 75,724 : x
  2. Step 2: Convert to fraction form
    130,177.96/179,573.29 = 75,724/x
  3. Step 3: Cross multiply
    130,177.96x = 179,573.29 × 75,724
  4. Step 4: Simplify right side
    130,177.96x = 13,598,007,811.96
  5. Step 5: Solve for x
    x = 13,598,007,811.96/130,177.96
  6. Step 6: Final answer
    x = 104,457.07

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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.