Home / 125,404.28-188,117.36-41,139.20

Finding the Fourth Proportional to 125,404.28, 188,117.36 and 41,139.20

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Solution

The fourth proportional to 125,404.28, 188,117.36 and 41,139.20 is: 61,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,404.28 : 188,117.36 = 41,139.20 : x
  2. Step 2: Convert to fraction form
    125,404.28/188,117.36 = 41,139.20/x
  3. Step 3: Cross multiply
    125,404.28x = 188,117.36 × 41,139.20
  4. Step 4: Simplify right side
    125,404.28x = 7,738,997,696.51
  5. Step 5: Solve for x
    x = 7,738,997,696.51/125,404.28
  6. Step 6: Final answer
    x = 61,712.39

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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.