Home / 157,623.13-217,520.64-86,004.67

Finding the Fourth Proportional to 157,623.13, 217,520.64 and 86,004.67

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Solution

The fourth proportional to 157,623.13, 217,520.64 and 86,004.67 is: 118,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,623.13 : 217,520.64 = 86,004.67 : x
  2. Step 2: Convert to fraction form
    157,623.13/217,520.64 = 86,004.67/x
  3. Step 3: Cross multiply
    157,623.13x = 217,520.64 × 86,004.67
  4. Step 4: Simplify right side
    157,623.13x = 18,707,790,861.39
  5. Step 5: Solve for x
    x = 18,707,790,861.39/157,623.13
  6. Step 6: Final answer
    x = 118,686.84

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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.