Home / 130,666.76-180,397.41-82,310.12

Finding the Fourth Proportional to 130,666.76, 180,397.41 and 82,310.12

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Solution

The fourth proportional to 130,666.76, 180,397.41 and 82,310.12 is: 113,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,666.76 : 180,397.41 = 82,310.12 : x
  2. Step 2: Convert to fraction form
    130,666.76/180,397.41 = 82,310.12/x
  3. Step 3: Cross multiply
    130,666.76x = 180,397.41 × 82,310.12
  4. Step 4: Simplify right side
    130,666.76x = 14,848,532,464.79
  5. Step 5: Solve for x
    x = 14,848,532,464.79/130,666.76
  6. Step 6: Final answer
    x = 113,636.65

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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.