Home / 130,569.09-180,240.45-88,185.03

Finding the Fourth Proportional to 130,569.09, 180,240.45 and 88,185.03

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Solution

The fourth proportional to 130,569.09, 180,240.45 and 88,185.03 is: 121,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,569.09 : 180,240.45 = 88,185.03 : x
  2. Step 2: Convert to fraction form
    130,569.09/180,240.45 = 88,185.03/x
  3. Step 3: Cross multiply
    130,569.09x = 180,240.45 × 88,185.03
  4. Step 4: Simplify right side
    130,569.09x = 15,894,508,589.26
  5. Step 5: Solve for x
    x = 15,894,508,589.26/130,569.09
  6. Step 6: Final answer
    x = 121,732.56

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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.