Home / 129,045.45-178,102.11-92,866.67

Finding the Fourth Proportional to 129,045.45, 178,102.11 and 92,866.67

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Solution

The fourth proportional to 129,045.45, 178,102.11 and 92,866.67 is: 128,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,045.45 : 178,102.11 = 92,866.67 : x
  2. Step 2: Convert to fraction form
    129,045.45/178,102.11 = 92,866.67/x
  3. Step 3: Cross multiply
    129,045.45x = 178,102.11 × 92,866.67
  4. Step 4: Simplify right side
    129,045.45x = 16,539,749,875.67
  5. Step 5: Solve for x
    x = 16,539,749,875.67/129,045.45
  6. Step 6: Final answer
    x = 128,169.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.