Home / 130,137.40-195,227.70-51,254.20

Finding the Fourth Proportional to 130,137.40, 195,227.70 and 51,254.20

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Solution

The fourth proportional to 130,137.40, 195,227.70 and 51,254.20 is: 76,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,137.40 : 195,227.70 = 51,254.20 : x
  2. Step 2: Convert to fraction form
    130,137.40/195,227.70 = 51,254.20/x
  3. Step 3: Cross multiply
    130,137.40x = 195,227.70 × 51,254.20
  4. Step 4: Simplify right side
    130,137.40x = 10,006,239,581.34
  5. Step 5: Solve for x
    x = 10,006,239,581.34/130,137.40
  6. Step 6: Final answer
    x = 76,889.81

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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.