Home / 157,756.56-217,702.68-86,136.24

Finding the Fourth Proportional to 157,756.56, 217,702.68 and 86,136.24

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Solution

The fourth proportional to 157,756.56, 217,702.68 and 86,136.24 is: 118,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,756.56 : 217,702.68 = 86,136.24 : x
  2. Step 2: Convert to fraction form
    157,756.56/217,702.68 = 86,136.24/x
  3. Step 3: Cross multiply
    157,756.56x = 217,702.68 × 86,136.24
  4. Step 4: Simplify right side
    157,756.56x = 18,752,090,293.12
  5. Step 5: Solve for x
    x = 18,752,090,293.12/157,756.56
  6. Step 6: Final answer
    x = 118,867.26

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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.