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Finding the Fourth Proportional to 130,953.69, 180,711.30 and 80,051.67

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Solution

The fourth proportional to 130,953.69, 180,711.30 and 80,051.67 is: 110,468.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,953.69 : 180,711.30 = 80,051.67 : x
  2. Step 2: Convert to fraction form
    130,953.69/180,711.30 = 80,051.67/x
  3. Step 3: Cross multiply
    130,953.69x = 180,711.30 × 80,051.67
  4. Step 4: Simplify right side
    130,953.69x = 14,466,241,352.87
  5. Step 5: Solve for x
    x = 14,466,241,352.87/130,953.69
  6. Step 6: Final answer
    x = 110,468.38

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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.