Home / 130,845.57-180,385.49-88,336.77

Finding the Fourth Proportional to 130,845.57, 180,385.49 and 88,336.77

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Solution

The fourth proportional to 130,845.57, 180,385.49 and 88,336.77 is: 121,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,845.57 : 180,385.49 = 88,336.77 : x
  2. Step 2: Convert to fraction form
    130,845.57/180,385.49 = 88,336.77/x
  3. Step 3: Cross multiply
    130,845.57x = 180,385.49 × 88,336.77
  4. Step 4: Simplify right side
    130,845.57x = 15,934,671,099.78
  5. Step 5: Solve for x
    x = 15,934,671,099.78/130,845.57
  6. Step 6: Final answer
    x = 121,782.27

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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.