Home / 157,396.18-217,200.37-85,774.66

Finding the Fourth Proportional to 157,396.18, 217,200.37 and 85,774.66

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Solution

The fourth proportional to 157,396.18, 217,200.37 and 85,774.66 is: 118,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,396.18 : 217,200.37 = 85,774.66 : x
  2. Step 2: Convert to fraction form
    157,396.18/217,200.37 = 85,774.66/x
  3. Step 3: Cross multiply
    157,396.18x = 217,200.37 × 85,774.66
  4. Step 4: Simplify right side
    157,396.18x = 18,630,287,888.62
  5. Step 5: Solve for x
    x = 18,630,287,888.62/157,396.18
  6. Step 6: Final answer
    x = 118,365.57

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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.