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Finding the Fourth Proportional to 152,984.70, 229,525.65 and 68,712.30

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Solution

The fourth proportional to 152,984.70, 229,525.65 and 68,712.30 is: 103,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,984.70 : 229,525.65 = 68,712.30 : x
  2. Step 2: Convert to fraction form
    152,984.70/229,525.65 = 68,712.30/x
  3. Step 3: Cross multiply
    152,984.70x = 229,525.65 × 68,712.30
  4. Step 4: Simplify right side
    152,984.70x = 15,771,235,320.50
  5. Step 5: Solve for x
    x = 15,771,235,320.50/152,984.70
  6. Step 6: Final answer
    x = 103,090.28

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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.