Home / 118,986.05-164,155.47-75,967.15

Finding the Fourth Proportional to 118,986.05, 164,155.47 and 75,967.15

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Solution

The fourth proportional to 118,986.05, 164,155.47 and 75,967.15 is: 104,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,986.05 : 164,155.47 = 75,967.15 : x
  2. Step 2: Convert to fraction form
    118,986.05/164,155.47 = 75,967.15/x
  3. Step 3: Cross multiply
    118,986.05x = 164,155.47 × 75,967.15
  4. Step 4: Simplify right side
    118,986.05x = 12,470,423,212.81
  5. Step 5: Solve for x
    x = 12,470,423,212.81/118,986.05
  6. Step 6: Final answer
    x = 104,805.76

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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.