Home / 117,780.33-176,603.34-80,385.67

Finding the Fourth Proportional to 117,780.33, 176,603.34 and 80,385.67

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Solution

The fourth proportional to 117,780.33, 176,603.34 and 80,385.67 is: 120,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,780.33 : 176,603.34 = 80,385.67 : x
  2. Step 2: Convert to fraction form
    117,780.33/176,603.34 = 80,385.67/x
  3. Step 3: Cross multiply
    117,780.33x = 176,603.34 × 80,385.67
  4. Step 4: Simplify right side
    117,780.33x = 14,196,377,810.14
  5. Step 5: Solve for x
    x = 14,196,377,810.14/117,780.33
  6. Step 6: Final answer
    x = 120,532.67

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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.