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Finding the Fourth Proportional to 188,499, 260,128.62 and 107,953.17

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Solution

The fourth proportional to 188,499, 260,128.62 and 107,953.17 is: 148,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,499 : 260,128.62 = 107,953.17 : x
  2. Step 2: Convert to fraction form
    188,499/260,128.62 = 107,953.17/x
  3. Step 3: Cross multiply
    188,499x = 260,128.62 × 107,953.17
  4. Step 4: Simplify right side
    188,499x = 28,081,709,136.73
  5. Step 5: Solve for x
    x = 28,081,709,136.73/188,499
  6. Step 6: Final answer
    x = 148,975.37

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1.5x scale

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.