Home / 139,960.60-193,141.76-76,298.38

Finding the Fourth Proportional to 139,960.60, 193,141.76 and 76,298.38

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Solution

The fourth proportional to 139,960.60, 193,141.76 and 76,298.38 is: 105,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,960.60 : 193,141.76 = 76,298.38 : x
  2. Step 2: Convert to fraction form
    139,960.60/193,141.76 = 76,298.38/x
  3. Step 3: Cross multiply
    139,960.60x = 193,141.76 × 76,298.38
  4. Step 4: Simplify right side
    139,960.60x = 14,736,403,398.35
  5. Step 5: Solve for x
    x = 14,736,403,398.35/139,960.60
  6. Step 6: Final answer
    x = 105,289.66

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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.