Home / 101,316.32-139,815.76-55,997.36

Finding the Fourth Proportional to 101,316.32, 139,815.76 and 55,997.36

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Solution

The fourth proportional to 101,316.32, 139,815.76 and 55,997.36 is: 77,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,316.32 : 139,815.76 = 55,997.36 : x
  2. Step 2: Convert to fraction form
    101,316.32/139,815.76 = 55,997.36/x
  3. Step 3: Cross multiply
    101,316.32x = 139,815.76 × 55,997.36
  4. Step 4: Simplify right side
    101,316.32x = 7,829,313,446.39
  5. Step 5: Solve for x
    x = 7,829,313,446.39/101,316.32
  6. Step 6: Final answer
    x = 77,275.94

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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.