Home / 113,549.76-170,395.11-77,114.34

Finding the Fourth Proportional to 113,549.76, 170,395.11 and 77,114.34

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Solution

The fourth proportional to 113,549.76, 170,395.11 and 77,114.34 is: 115,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,549.76 : 170,395.11 = 77,114.34 : x
  2. Step 2: Convert to fraction form
    113,549.76/170,395.11 = 77,114.34/x
  3. Step 3: Cross multiply
    113,549.76x = 170,395.11 × 77,114.34
  4. Step 4: Simplify right side
    113,549.76x = 13,139,906,446.88
  5. Step 5: Solve for x
    x = 13,139,906,446.88/113,549.76
  6. Step 6: Final answer
    x = 115,719.37

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1.5x scale

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.