Home / 177,752.20-266,628.30-127,985.80

Finding the Fourth Proportional to 177,752.20, 266,628.30 and 127,985.80

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Solution

The fourth proportional to 177,752.20, 266,628.30 and 127,985.80 is: 191,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,752.20 : 266,628.30 = 127,985.80 : x
  2. Step 2: Convert to fraction form
    177,752.20/266,628.30 = 127,985.80/x
  3. Step 3: Cross multiply
    177,752.20x = 266,628.30 × 127,985.80
  4. Step 4: Simplify right side
    177,752.20x = 34,124,636,278.14
  5. Step 5: Solve for x
    x = 34,124,636,278.14/177,752.20
  6. Step 6: Final answer
    x = 191,978.70

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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.