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Finding the Fourth Proportional to 152,580, 210,573.36 and 85,524.96

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Solution

The fourth proportional to 152,580, 210,573.36 and 85,524.96 is: 118,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,580 : 210,573.36 = 85,524.96 : x
  2. Step 2: Convert to fraction form
    152,580/210,573.36 = 85,524.96/x
  3. Step 3: Cross multiply
    152,580x = 210,573.36 × 85,524.96
  4. Step 4: Simplify right side
    152,580x = 18,009,278,191.07
  5. Step 5: Solve for x
    x = 18,009,278,191.07/152,580
  6. Step 6: Final answer
    x = 118,031.71

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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.