Home / 130,862.60-196,321.80-74,729.60

Finding the Fourth Proportional to 130,862.60, 196,321.80 and 74,729.60

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Solution

The fourth proportional to 130,862.60, 196,321.80 and 74,729.60 is: 112,110.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,862.60 : 196,321.80 = 74,729.60 : x
  2. Step 2: Convert to fraction form
    130,862.60/196,321.80 = 74,729.60/x
  3. Step 3: Cross multiply
    130,862.60x = 196,321.80 × 74,729.60
  4. Step 4: Simplify right side
    130,862.60x = 14,671,049,585.28
  5. Step 5: Solve for x
    x = 14,671,049,585.28/130,862.60
  6. Step 6: Final answer
    x = 112,110.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.