Home / 117,118.12-161,623.05-63,403.13

Finding the Fourth Proportional to 117,118.12, 161,623.05 and 63,403.13

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Solution

The fourth proportional to 117,118.12, 161,623.05 and 63,403.13 is: 87,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,118.12 : 161,623.05 = 63,403.13 : x
  2. Step 2: Convert to fraction form
    117,118.12/161,623.05 = 63,403.13/x
  3. Step 3: Cross multiply
    117,118.12x = 161,623.05 × 63,403.13
  4. Step 4: Simplify right side
    117,118.12x = 10,247,407,250.15
  5. Step 5: Solve for x
    x = 10,247,407,250.15/117,118.12
  6. Step 6: Final answer
    x = 87,496.34

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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.