Home / 107,338.32-161,036.64-76,370.40

Finding the Fourth Proportional to 107,338.32, 161,036.64 and 76,370.40

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Solution

The fourth proportional to 107,338.32, 161,036.64 and 76,370.40 is: 114,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,338.32 : 161,036.64 = 76,370.40 : x
  2. Step 2: Convert to fraction form
    107,338.32/161,036.64 = 76,370.40/x
  3. Step 3: Cross multiply
    107,338.32x = 161,036.64 × 76,370.40
  4. Step 4: Simplify right side
    107,338.32x = 12,298,432,611.46
  5. Step 5: Solve for x
    x = 12,298,432,611.46/107,338.32
  6. Step 6: Final answer
    x = 114,576.35

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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.