Home / 157,818.90-217,794.79-86,200.12

Finding the Fourth Proportional to 157,818.90, 217,794.79 and 86,200.12

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Solution

The fourth proportional to 157,818.90, 217,794.79 and 86,200.12 is: 118,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,818.90 : 217,794.79 = 86,200.12 : x
  2. Step 2: Convert to fraction form
    157,818.90/217,794.79 = 86,200.12/x
  3. Step 3: Cross multiply
    157,818.90x = 217,794.79 × 86,200.12
  4. Step 4: Simplify right side
    157,818.90x = 18,773,937,033.37
  5. Step 5: Solve for x
    x = 18,773,937,033.37/157,818.90
  6. Step 6: Final answer
    x = 118,958.74

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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.