Home / 153,245.40-229,932.90-97,128.60

Finding the Fourth Proportional to 153,245.40, 229,932.90 and 97,128.60

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Solution

The fourth proportional to 153,245.40, 229,932.90 and 97,128.60 is: 145,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,245.40 : 229,932.90 = 97,128.60 : x
  2. Step 2: Convert to fraction form
    153,245.40/229,932.90 = 97,128.60/x
  3. Step 3: Cross multiply
    153,245.40x = 229,932.90 × 97,128.60
  4. Step 4: Simplify right side
    153,245.40x = 22,333,060,670.94
  5. Step 5: Solve for x
    x = 22,333,060,670.94/153,245.40
  6. Step 6: Final answer
    x = 145,733.97

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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.