Home / 130,665.02-180,395.02-82,308.40

Finding the Fourth Proportional to 130,665.02, 180,395.02 and 82,308.40

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Solution

The fourth proportional to 130,665.02, 180,395.02 and 82,308.40 is: 113,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,665.02 : 180,395.02 = 82,308.40 : x
  2. Step 2: Convert to fraction form
    130,665.02/180,395.02 = 82,308.40/x
  3. Step 3: Cross multiply
    130,665.02x = 180,395.02 × 82,308.40
  4. Step 4: Simplify right side
    130,665.02x = 14,848,025,464.17
  5. Step 5: Solve for x
    x = 14,848,025,464.17/130,665.02
  6. Step 6: Final answer
    x = 113,634.28

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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.