Home / 130,938.73-180,690.36-80,036.68

Finding the Fourth Proportional to 130,938.73, 180,690.36 and 80,036.68

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Solution

The fourth proportional to 130,938.73, 180,690.36 and 80,036.68 is: 110,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,938.73 : 180,690.36 = 80,036.68 : x
  2. Step 2: Convert to fraction form
    130,938.73/180,690.36 = 80,036.68/x
  3. Step 3: Cross multiply
    130,938.73x = 180,690.36 × 80,036.68
  4. Step 4: Simplify right side
    130,938.73x = 14,461,856,522.40
  5. Step 5: Solve for x
    x = 14,461,856,522.40/130,938.73
  6. Step 6: Final answer
    x = 110,447.51

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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.