Home / 107,919.10-161,878.65-83,007.10

Finding the Fourth Proportional to 107,919.10, 161,878.65 and 83,007.10

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Solution

The fourth proportional to 107,919.10, 161,878.65 and 83,007.10 is: 124,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,919.10 : 161,878.65 = 83,007.10 : x
  2. Step 2: Convert to fraction form
    107,919.10/161,878.65 = 83,007.10/x
  3. Step 3: Cross multiply
    107,919.10x = 161,878.65 × 83,007.10
  4. Step 4: Simplify right side
    107,919.10x = 13,437,077,288.42
  5. Step 5: Solve for x
    x = 13,437,077,288.42/107,919.10
  6. Step 6: Final answer
    x = 124,510.65

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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.