Home / 130,836.10-180,543.52-74,247.48

Finding the Fourth Proportional to 130,836.10, 180,543.52 and 74,247.48

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Solution

The fourth proportional to 130,836.10, 180,543.52 and 74,247.48 is: 102,455.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836.10 : 180,543.52 = 74,247.48 : x
  2. Step 2: Convert to fraction form
    130,836.10/180,543.52 = 74,247.48/x
  3. Step 3: Cross multiply
    130,836.10x = 180,543.52 × 74,247.48
  4. Step 4: Simplify right side
    130,836.10x = 13,404,901,390.33
  5. Step 5: Solve for x
    x = 13,404,901,390.33/130,836.10
  6. Step 6: Final answer
    x = 102,455.68

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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.