Home / 138,362.37-190,943.91-84,646.41

Finding the Fourth Proportional to 138,362.37, 190,943.91 and 84,646.41

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Solution

The fourth proportional to 138,362.37, 190,943.91 and 84,646.41 is: 116,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,362.37 : 190,943.91 = 84,646.41 : x
  2. Step 2: Convert to fraction form
    138,362.37/190,943.91 = 84,646.41/x
  3. Step 3: Cross multiply
    138,362.37x = 190,943.91 × 84,646.41
  4. Step 4: Simplify right side
    138,362.37x = 16,162,716,492.86
  5. Step 5: Solve for x
    x = 16,162,716,492.86/138,362.37
  6. Step 6: Final answer
    x = 116,814.39

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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.