Home / 157,820.19-217,791.86-86,200.38

Finding the Fourth Proportional to 157,820.19, 217,791.86 and 86,200.38

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Solution

The fourth proportional to 157,820.19, 217,791.86 and 86,200.38 is: 118,956.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,820.19 : 217,791.86 = 86,200.38 : x
  2. Step 2: Convert to fraction form
    157,820.19/217,791.86 = 86,200.38/x
  3. Step 3: Cross multiply
    157,820.19x = 217,791.86 × 86,200.38
  4. Step 4: Simplify right side
    157,820.19x = 18,773,740,661.90
  5. Step 5: Solve for x
    x = 18,773,740,661.90/157,820.19
  6. Step 6: Final answer
    x = 118,956.52

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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.