Home / 139,957.68-193,140.42-76,294.14

Finding the Fourth Proportional to 139,957.68, 193,140.42 and 76,294.14

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Solution

The fourth proportional to 139,957.68, 193,140.42 and 76,294.14 is: 105,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,957.68 : 193,140.42 = 76,294.14 : x
  2. Step 2: Convert to fraction form
    139,957.68/193,140.42 = 76,294.14/x
  3. Step 3: Cross multiply
    139,957.68x = 193,140.42 × 76,294.14
  4. Step 4: Simplify right side
    139,957.68x = 14,735,482,243.14
  5. Step 5: Solve for x
    x = 14,735,482,243.14/139,957.68
  6. Step 6: Final answer
    x = 105,285.27

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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.