Home / 118,943.10-164,055.78-76,461.03

Finding the Fourth Proportional to 118,943.10, 164,055.78 and 76,461.03

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Solution

The fourth proportional to 118,943.10, 164,055.78 and 76,461.03 is: 105,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,943.10 : 164,055.78 = 76,461.03 : x
  2. Step 2: Convert to fraction form
    118,943.10/164,055.78 = 76,461.03/x
  3. Step 3: Cross multiply
    118,943.10x = 164,055.78 × 76,461.03
  4. Step 4: Simplify right side
    118,943.10x = 12,543,873,916.25
  5. Step 5: Solve for x
    x = 12,543,873,916.25/118,943.10
  6. Step 6: Final answer
    x = 105,461.13

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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.