Home / 125,509.38-188,258.31-42,404.10

Finding the Fourth Proportional to 125,509.38, 188,258.31 and 42,404.10

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Solution

The fourth proportional to 125,509.38, 188,258.31 and 42,404.10 is: 63,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,509.38 : 188,258.31 = 42,404.10 : x
  2. Step 2: Convert to fraction form
    125,509.38/188,258.31 = 42,404.10/x
  3. Step 3: Cross multiply
    125,509.38x = 188,258.31 × 42,404.10
  4. Step 4: Simplify right side
    125,509.38x = 7,982,924,203.07
  5. Step 5: Solve for x
    x = 7,982,924,203.07/125,509.38
  6. Step 6: Final answer
    x = 63,604.20

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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.