Home / 112,113.06-154,726.92-83,769.54

Finding the Fourth Proportional to 112,113.06, 154,726.92 and 83,769.54

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Solution

The fourth proportional to 112,113.06, 154,726.92 and 83,769.54 is: 115,610.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,113.06 : 154,726.92 = 83,769.54 : x
  2. Step 2: Convert to fraction form
    112,113.06/154,726.92 = 83,769.54/x
  3. Step 3: Cross multiply
    112,113.06x = 154,726.92 × 83,769.54
  4. Step 4: Simplify right side
    112,113.06x = 12,961,402,914.02
  5. Step 5: Solve for x
    x = 12,961,402,914.02/112,113.06
  6. Step 6: Final answer
    x = 115,610.11

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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.