Home / 157,833.10-217,814.92-86,219.80

Finding the Fourth Proportional to 157,833.10, 217,814.92 and 86,219.80

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Solution

The fourth proportional to 157,833.10, 217,814.92 and 86,219.80 is: 118,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,833.10 : 217,814.92 = 86,219.80 : x
  2. Step 2: Convert to fraction form
    157,833.10/217,814.92 = 86,219.80/x
  3. Step 3: Cross multiply
    157,833.10x = 217,814.92 × 86,219.80
  4. Step 4: Simplify right side
    157,833.10x = 18,779,958,839.42
  5. Step 5: Solve for x
    x = 18,779,958,839.42/157,833.10
  6. Step 6: Final answer
    x = 118,986.19

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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.