Home / 130,945.04-180,704.20-71,329.04

Finding the Fourth Proportional to 130,945.04, 180,704.20 and 71,329.04

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Solution

The fourth proportional to 130,945.04, 180,704.20 and 71,329.04 is: 98,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.04 : 180,704.20 = 71,329.04 : x
  2. Step 2: Convert to fraction form
    130,945.04/180,704.20 = 71,329.04/x
  3. Step 3: Cross multiply
    130,945.04x = 180,704.20 × 71,329.04
  4. Step 4: Simplify right side
    130,945.04x = 12,889,457,109.97
  5. Step 5: Solve for x
    x = 12,889,457,109.97/130,945.04
  6. Step 6: Final answer
    x = 98,434.10

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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.