Home / 130,844.40-180,582.12-88,400.40

Finding the Fourth Proportional to 130,844.40, 180,582.12 and 88,400.40

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Solution

The fourth proportional to 130,844.40, 180,582.12 and 88,400.40 is: 122,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,844.40 : 180,582.12 = 88,400.40 : x
  2. Step 2: Convert to fraction form
    130,844.40/180,582.12 = 88,400.40/x
  3. Step 3: Cross multiply
    130,844.40x = 180,582.12 × 88,400.40
  4. Step 4: Simplify right side
    130,844.40x = 15,963,531,640.85
  5. Step 5: Solve for x
    x = 15,963,531,640.85/130,844.40
  6. Step 6: Final answer
    x = 122,003.93

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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.