Home / 125,137.18-172,647.04-71,384.37

Finding the Fourth Proportional to 125,137.18, 172,647.04 and 71,384.37

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Solution

The fourth proportional to 125,137.18, 172,647.04 and 71,384.37 is: 98,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,137.18 : 172,647.04 = 71,384.37 : x
  2. Step 2: Convert to fraction form
    125,137.18/172,647.04 = 71,384.37/x
  3. Step 3: Cross multiply
    125,137.18x = 172,647.04 × 71,384.37
  4. Step 4: Simplify right side
    125,137.18x = 12,324,300,182.76
  5. Step 5: Solve for x
    x = 12,324,300,182.76/125,137.18
  6. Step 6: Final answer
    x = 98,486.32

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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.