Home / 130,569.21-180,240.62-88,185.15

Finding the Fourth Proportional to 130,569.21, 180,240.62 and 88,185.15

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Solution

The fourth proportional to 130,569.21, 180,240.62 and 88,185.15 is: 121,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,569.21 : 180,240.62 = 88,185.15 : x
  2. Step 2: Convert to fraction form
    130,569.21/180,240.62 = 88,185.15/x
  3. Step 3: Cross multiply
    130,569.21x = 180,240.62 × 88,185.15
  4. Step 4: Simplify right side
    130,569.21x = 15,894,546,110.79
  5. Step 5: Solve for x
    x = 15,894,546,110.79/130,569.21
  6. Step 6: Final answer
    x = 121,732.73

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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.