Home / 157,613.10-217,505.77-85,993.17

Finding the Fourth Proportional to 157,613.10, 217,505.77 and 85,993.17

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Solution

The fourth proportional to 157,613.10, 217,505.77 and 85,993.17 is: 118,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,613.10 : 217,505.77 = 85,993.17 : x
  2. Step 2: Convert to fraction form
    157,613.10/217,505.77 = 85,993.17/x
  3. Step 3: Cross multiply
    157,613.10x = 217,505.77 × 85,993.17
  4. Step 4: Simplify right side
    157,613.10x = 18,704,010,655.59
  5. Step 5: Solve for x
    x = 18,704,010,655.59/157,613.10
  6. Step 6: Final answer
    x = 118,670.41

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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.