Home / 127,895.22-176,439.36-121,966.02

Finding the Fourth Proportional to 127,895.22, 176,439.36 and 121,966.02

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Solution

The fourth proportional to 127,895.22, 176,439.36 and 121,966.02 is: 168,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,895.22 : 176,439.36 = 121,966.02 : x
  2. Step 2: Convert to fraction form
    127,895.22/176,439.36 = 121,966.02/x
  3. Step 3: Cross multiply
    127,895.22x = 176,439.36 × 121,966.02
  4. Step 4: Simplify right side
    127,895.22x = 21,519,606,510.55
  5. Step 5: Solve for x
    x = 21,519,606,510.55/127,895.22
  6. Step 6: Final answer
    x = 168,259.66

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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.