Home / 130,032.80-194,903.40-55,140.20

Finding the Fourth Proportional to 130,032.80, 194,903.40 and 55,140.20

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Solution

The fourth proportional to 130,032.80, 194,903.40 and 55,140.20 is: 82,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,032.80 : 194,903.40 = 55,140.20 : x
  2. Step 2: Convert to fraction form
    130,032.80/194,903.40 = 55,140.20/x
  3. Step 3: Cross multiply
    130,032.80x = 194,903.40 × 55,140.20
  4. Step 4: Simplify right side
    130,032.80x = 10,747,012,456.68
  5. Step 5: Solve for x
    x = 10,747,012,456.68/130,032.80
  6. Step 6: Final answer
    x = 82,648.47

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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.