Home / 130,765.79-180,511.64-88,381.73

Finding the Fourth Proportional to 130,765.79, 180,511.64 and 88,381.73

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Solution

The fourth proportional to 130,765.79, 180,511.64 and 88,381.73 is: 122,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,765.79 : 180,511.64 = 88,381.73 : x
  2. Step 2: Convert to fraction form
    130,765.79/180,511.64 = 88,381.73/x
  3. Step 3: Cross multiply
    130,765.79x = 180,511.64 × 88,381.73
  4. Step 4: Simplify right side
    130,765.79x = 15,953,931,369.14
  5. Step 5: Solve for x
    x = 15,953,931,369.14/130,765.79
  6. Step 6: Final answer
    x = 122,003.86

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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.