Home / 130,943.12-196,262.40-74,822.60

Finding the Fourth Proportional to 130,943.12, 196,262.40 and 74,822.60

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Solution

The fourth proportional to 130,943.12, 196,262.40 and 74,822.60 is: 112,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,943.12 : 196,262.40 = 74,822.60 : x
  2. Step 2: Convert to fraction form
    130,943.12/196,262.40 = 74,822.60/x
  3. Step 3: Cross multiply
    130,943.12x = 196,262.40 × 74,822.60
  4. Step 4: Simplify right side
    130,943.12x = 14,684,863,050.24
  5. Step 5: Solve for x
    x = 14,684,863,050.24/130,943.12
  6. Step 6: Final answer
    x = 112,146.89

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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.