Home / 125,045.66-172,579.43-71,318.36

Finding the Fourth Proportional to 125,045.66, 172,579.43 and 71,318.36

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Solution

The fourth proportional to 125,045.66, 172,579.43 and 71,318.36 is: 98,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,045.66 : 172,579.43 = 71,318.36 : x
  2. Step 2: Convert to fraction form
    125,045.66/172,579.43 = 71,318.36/x
  3. Step 3: Cross multiply
    125,045.66x = 172,579.43 × 71,318.36
  4. Step 4: Simplify right side
    125,045.66x = 12,308,081,917.33
  5. Step 5: Solve for x
    x = 12,308,081,917.33/125,045.66
  6. Step 6: Final answer
    x = 98,428.70

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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.