Home / 188,285.17-259,838.06-103,404.05

Finding the Fourth Proportional to 188,285.17, 259,838.06 and 103,404.05

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Solution

The fourth proportional to 188,285.17, 259,838.06 and 103,404.05 is: 142,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,285.17 : 259,838.06 = 103,404.05 : x
  2. Step 2: Convert to fraction form
    188,285.17/259,838.06 = 103,404.05/x
  3. Step 3: Cross multiply
    188,285.17x = 259,838.06 × 103,404.05
  4. Step 4: Simplify right side
    188,285.17x = 26,868,307,748.14
  5. Step 5: Solve for x
    x = 26,868,307,748.14/188,285.17
  6. Step 6: Final answer
    x = 142,700.07

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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.