Home / 118,901.14-164,169.69-76,533.49

Finding the Fourth Proportional to 118,901.14, 164,169.69 and 76,533.49

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Solution

The fourth proportional to 118,901.14, 164,169.69 and 76,533.49 is: 105,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,901.14 : 164,169.69 = 76,533.49 : x
  2. Step 2: Convert to fraction form
    118,901.14/164,169.69 = 76,533.49/x
  3. Step 3: Cross multiply
    118,901.14x = 164,169.69 × 76,533.49
  4. Step 4: Simplify right side
    118,901.14x = 12,564,479,199.29
  5. Step 5: Solve for x
    x = 12,564,479,199.29/118,901.14
  6. Step 6: Final answer
    x = 105,671.64

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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.