Home / 130,595.99-180,146.10-82,121.19

Finding the Fourth Proportional to 130,595.99, 180,146.10 and 82,121.19

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Solution

The fourth proportional to 130,595.99, 180,146.10 and 82,121.19 is: 113,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,595.99 : 180,146.10 = 82,121.19 : x
  2. Step 2: Convert to fraction form
    130,595.99/180,146.10 = 82,121.19/x
  3. Step 3: Cross multiply
    130,595.99x = 180,146.10 × 82,121.19
  4. Step 4: Simplify right side
    130,595.99x = 14,793,812,105.86
  5. Step 5: Solve for x
    x = 14,793,812,105.86/130,595.99
  6. Step 6: Final answer
    x = 113,279.23

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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.