Home / 157,743.46-217,677.67-86,109.63

Finding the Fourth Proportional to 157,743.46, 217,677.67 and 86,109.63

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Solution

The fourth proportional to 157,743.46, 217,677.67 and 86,109.63 is: 118,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,743.46 : 217,677.67 = 86,109.63 : x
  2. Step 2: Convert to fraction form
    157,743.46/217,677.67 = 86,109.63/x
  3. Step 3: Cross multiply
    157,743.46x = 217,677.67 × 86,109.63
  4. Step 4: Simplify right side
    157,743.46x = 18,744,143,622.96
  5. Step 5: Solve for x
    x = 18,744,143,622.96/157,743.46
  6. Step 6: Final answer
    x = 118,826.76

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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.