Home / 130,845.07-180,384.78-88,336.27

Finding the Fourth Proportional to 130,845.07, 180,384.78 and 88,336.27

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Solution

The fourth proportional to 130,845.07, 180,384.78 and 88,336.27 is: 121,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,845.07 : 180,384.78 = 88,336.27 : x
  2. Step 2: Convert to fraction form
    130,845.07/180,384.78 = 88,336.27/x
  3. Step 3: Cross multiply
    130,845.07x = 180,384.78 × 88,336.27
  4. Step 4: Simplify right side
    130,845.07x = 15,934,518,629.97
  5. Step 5: Solve for x
    x = 15,934,518,629.97/130,845.07
  6. Step 6: Final answer
    x = 121,781.57

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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.