Home / 270,251.12-405,386.32-92,756.90

Finding the Fourth Proportional to 270,251.12, 405,386.32 and 92,756.90

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Solution

The fourth proportional to 270,251.12, 405,386.32 and 92,756.90 is: 139,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,251.12 : 405,386.32 = 92,756.90 : x
  2. Step 2: Convert to fraction form
    270,251.12/405,386.32 = 92,756.90/x
  3. Step 3: Cross multiply
    270,251.12x = 405,386.32 × 92,756.90
  4. Step 4: Simplify right side
    270,251.12x = 37,602,378,345.61
  5. Step 5: Solve for x
    x = 37,602,378,345.61/270,251.12
  6. Step 6: Final answer
    x = 139,138.66

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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.