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Finding the Fourth Proportional to 172,573.60, 258,897.36 and 97,729.12

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Solution

The fourth proportional to 172,573.60, 258,897.36 and 97,729.12 is: 146,614.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,573.60 : 258,897.36 = 97,729.12 : x
  2. Step 2: Convert to fraction form
    172,573.60/258,897.36 = 97,729.12/x
  3. Step 3: Cross multiply
    172,573.60x = 258,897.36 × 97,729.12
  4. Step 4: Simplify right side
    172,573.60x = 25,301,811,163.12
  5. Step 5: Solve for x
    x = 25,301,811,163.12/172,573.60
  6. Step 6: Final answer
    x = 146,614.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.