Home / 126,518.47-174,738.95-86,162.11

Finding the Fourth Proportional to 126,518.47, 174,738.95 and 86,162.11

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Solution

The fourth proportional to 126,518.47, 174,738.95 and 86,162.11 is: 119,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,518.47 : 174,738.95 = 86,162.11 : x
  2. Step 2: Convert to fraction form
    126,518.47/174,738.95 = 86,162.11/x
  3. Step 3: Cross multiply
    126,518.47x = 174,738.95 × 86,162.11
  4. Step 4: Simplify right side
    126,518.47x = 15,055,876,631.18
  5. Step 5: Solve for x
    x = 15,055,876,631.18/126,518.47
  6. Step 6: Final answer
    x = 119,001.41

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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.