Home / 127,820.23-176,405.10-76,849.63

Finding the Fourth Proportional to 127,820.23, 176,405.10 and 76,849.63

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Solution

The fourth proportional to 127,820.23, 176,405.10 and 76,849.63 is: 106,060.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,820.23 : 176,405.10 = 76,849.63 : x
  2. Step 2: Convert to fraction form
    127,820.23/176,405.10 = 76,849.63/x
  3. Step 3: Cross multiply
    127,820.23x = 176,405.10 × 76,849.63
  4. Step 4: Simplify right side
    127,820.23x = 13,556,666,665.11
  5. Step 5: Solve for x
    x = 13,556,666,665.11/127,820.23
  6. Step 6: Final answer
    x = 106,060.42

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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.