Home / 126,718.44-174,712.48-81,316.32

Finding the Fourth Proportional to 126,718.44, 174,712.48 and 81,316.32

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Solution

The fourth proportional to 126,718.44, 174,712.48 and 81,316.32 is: 112,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,718.44 : 174,712.48 = 81,316.32 : x
  2. Step 2: Convert to fraction form
    126,718.44/174,712.48 = 81,316.32/x
  3. Step 3: Cross multiply
    126,718.44x = 174,712.48 × 81,316.32
  4. Step 4: Simplify right side
    126,718.44x = 14,206,975,931.67
  5. Step 5: Solve for x
    x = 14,206,975,931.67/126,718.44
  6. Step 6: Final answer
    x = 112,114.51

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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.