Home / 139,775.48-192,887.64-76,112.24

Finding the Fourth Proportional to 139,775.48, 192,887.64 and 76,112.24

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Solution

The fourth proportional to 139,775.48, 192,887.64 and 76,112.24 is: 105,033.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,775.48 : 192,887.64 = 76,112.24 : x
  2. Step 2: Convert to fraction form
    139,775.48/192,887.64 = 76,112.24/x
  3. Step 3: Cross multiply
    139,775.48x = 192,887.64 × 76,112.24
  4. Step 4: Simplify right side
    139,775.48x = 14,681,110,348.71
  5. Step 5: Solve for x
    x = 14,681,110,348.71/139,775.48
  6. Step 6: Final answer
    x = 105,033.52

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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.