Home / 130,779.40-196,169.10-122,906.20

Finding the Fourth Proportional to 130,779.40, 196,169.10 and 122,906.20

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Solution

The fourth proportional to 130,779.40, 196,169.10 and 122,906.20 is: 184,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,779.40 : 196,169.10 = 122,906.20 : x
  2. Step 2: Convert to fraction form
    130,779.40/196,169.10 = 122,906.20/x
  3. Step 3: Cross multiply
    130,779.40x = 196,169.10 × 122,906.20
  4. Step 4: Simplify right side
    130,779.40x = 24,110,398,638.42
  5. Step 5: Solve for x
    x = 24,110,398,638.42/130,779.40
  6. Step 6: Final answer
    x = 184,359.30

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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.