Home / 130,595.72-195,708.80-55,640.39

Finding the Fourth Proportional to 130,595.72, 195,708.80 and 55,640.39

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Solution

The fourth proportional to 130,595.72, 195,708.80 and 55,640.39 is: 83,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,595.72 : 195,708.80 = 55,640.39 : x
  2. Step 2: Convert to fraction form
    130,595.72/195,708.80 = 55,640.39/x
  3. Step 3: Cross multiply
    130,595.72x = 195,708.80 × 55,640.39
  4. Step 4: Simplify right side
    130,595.72x = 10,889,313,118.99
  5. Step 5: Solve for x
    x = 10,889,313,118.99/130,595.72
  6. Step 6: Final answer
    x = 83,381.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.