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Finding the Fourth Proportional to 152,910.96, 229,159.08 and 79,090.80

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Solution

The fourth proportional to 152,910.96, 229,159.08 and 79,090.80 is: 118,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,910.96 : 229,159.08 = 79,090.80 : x
  2. Step 2: Convert to fraction form
    152,910.96/229,159.08 = 79,090.80/x
  3. Step 3: Cross multiply
    152,910.96x = 229,159.08 × 79,090.80
  4. Step 4: Simplify right side
    152,910.96x = 18,124,374,964.46
  5. Step 5: Solve for x
    x = 18,124,374,964.46/152,910.96
  6. Step 6: Final answer
    x = 118,528.95

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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.