Home / 114,682.20-172,023.30-86,688.60

Finding the Fourth Proportional to 114,682.20, 172,023.30 and 86,688.60

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Solution

The fourth proportional to 114,682.20, 172,023.30 and 86,688.60 is: 130,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,682.20 : 172,023.30 = 86,688.60 : x
  2. Step 2: Convert to fraction form
    114,682.20/172,023.30 = 86,688.60/x
  3. Step 3: Cross multiply
    114,682.20x = 172,023.30 × 86,688.60
  4. Step 4: Simplify right side
    114,682.20x = 14,912,459,044.38
  5. Step 5: Solve for x
    x = 14,912,459,044.38/114,682.20
  6. Step 6: Final answer
    x = 130,032.90

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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.