Home / 130,110.30-195,165.45-77,622.30

Finding the Fourth Proportional to 130,110.30, 195,165.45 and 77,622.30

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Solution

The fourth proportional to 130,110.30, 195,165.45 and 77,622.30 is: 116,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,110.30 : 195,165.45 = 77,622.30 : x
  2. Step 2: Convert to fraction form
    130,110.30/195,165.45 = 77,622.30/x
  3. Step 3: Cross multiply
    130,110.30x = 195,165.45 × 77,622.30
  4. Step 4: Simplify right side
    130,110.30x = 15,149,191,109.54
  5. Step 5: Solve for x
    x = 15,149,191,109.54/130,110.30
  6. Step 6: Final answer
    x = 116,433.45

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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.