Home / 177,744.34-266,439.93-72,638.74

Finding the Fourth Proportional to 177,744.34, 266,439.93 and 72,638.74

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Solution

The fourth proportional to 177,744.34, 266,439.93 and 72,638.74 is: 108,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,744.34 : 266,439.93 = 72,638.74 : x
  2. Step 2: Convert to fraction form
    177,744.34/266,439.93 = 72,638.74/x
  3. Step 3: Cross multiply
    177,744.34x = 266,439.93 × 72,638.74
  4. Step 4: Simplify right side
    177,744.34x = 19,353,860,800.89
  5. Step 5: Solve for x
    x = 19,353,860,800.89/177,744.34
  6. Step 6: Final answer
    x = 108,885.95

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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.