Home / 127,806.85-176,386.58-76,836.18

Finding the Fourth Proportional to 127,806.85, 176,386.58 and 76,836.18

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Solution

The fourth proportional to 127,806.85, 176,386.58 and 76,836.18 is: 106,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.85 : 176,386.58 = 76,836.18 : x
  2. Step 2: Convert to fraction form
    127,806.85/176,386.58 = 76,836.18/x
  3. Step 3: Cross multiply
    127,806.85x = 176,386.58 × 76,836.18
  4. Step 4: Simplify right side
    127,806.85x = 13,552,871,010.46
  5. Step 5: Solve for x
    x = 13,552,871,010.46/127,806.85
  6. Step 6: Final answer
    x = 106,041.82

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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.