Home / 127,940.04-176,631.84-84,977.64

Finding the Fourth Proportional to 127,940.04, 176,631.84 and 84,977.64

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Solution

The fourth proportional to 127,940.04, 176,631.84 and 84,977.64 is: 117,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,940.04 : 176,631.84 = 84,977.64 : x
  2. Step 2: Convert to fraction form
    127,940.04/176,631.84 = 84,977.64/x
  3. Step 3: Cross multiply
    127,940.04x = 176,631.84 × 84,977.64
  4. Step 4: Simplify right side
    127,940.04x = 15,009,756,912.06
  5. Step 5: Solve for x
    x = 15,009,756,912.06/127,940.04
  6. Step 6: Final answer
    x = 117,318.68

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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.