Home / 125,006.10-172,507.80-67,645.38

Finding the Fourth Proportional to 125,006.10, 172,507.80 and 67,645.38

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Solution

The fourth proportional to 125,006.10, 172,507.80 and 67,645.38 is: 93,350.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,006.10 : 172,507.80 = 67,645.38 : x
  2. Step 2: Convert to fraction form
    125,006.10/172,507.80 = 67,645.38/x
  3. Step 3: Cross multiply
    125,006.10x = 172,507.80 × 67,645.38
  4. Step 4: Simplify right side
    125,006.10x = 11,669,355,683.96
  5. Step 5: Solve for x
    x = 11,669,355,683.96/125,006.10
  6. Step 6: Final answer
    x = 93,350.29

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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.