Home / 125,530.20-188,295.30-42,424.20

Finding the Fourth Proportional to 125,530.20, 188,295.30 and 42,424.20

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Solution

The fourth proportional to 125,530.20, 188,295.30 and 42,424.20 is: 63,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,530.20 : 188,295.30 = 42,424.20 : x
  2. Step 2: Convert to fraction form
    125,530.20/188,295.30 = 42,424.20/x
  3. Step 3: Cross multiply
    125,530.20x = 188,295.30 × 42,424.20
  4. Step 4: Simplify right side
    125,530.20x = 7,988,277,466.26
  5. Step 5: Solve for x
    x = 7,988,277,466.26/125,530.20
  6. Step 6: Final answer
    x = 63,636.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.