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Finding the Fourth Proportional to 160,004.40, 239,996.80 and 66,510.96

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Solution

The fourth proportional to 160,004.40, 239,996.80 and 66,510.96 is: 99,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,004.40 : 239,996.80 = 66,510.96 : x
  2. Step 2: Convert to fraction form
    160,004.40/239,996.80 = 66,510.96/x
  3. Step 3: Cross multiply
    160,004.40x = 239,996.80 × 66,510.96
  4. Step 4: Simplify right side
    160,004.40x = 15,962,417,564.93
  5. Step 5: Solve for x
    x = 15,962,417,564.93/160,004.40
  6. Step 6: Final answer
    x = 99,762.37

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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.