Home / 127,000.80-190,566-52,178.40

Finding the Fourth Proportional to 127,000.80, 190,566 and 52,178.40

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Solution

The fourth proportional to 127,000.80, 190,566 and 52,178.40 is: 78,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,000.80 : 190,566 = 52,178.40 : x
  2. Step 2: Convert to fraction form
    127,000.80/190,566 = 52,178.40/x
  3. Step 3: Cross multiply
    127,000.80x = 190,566 × 52,178.40
  4. Step 4: Simplify right side
    127,000.80x = 9,943,428,974.40
  5. Step 5: Solve for x
    x = 9,943,428,974.40/127,000.80
  6. Step 6: Final answer
    x = 78,294.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.