Home / 130,000.08-179,226.63-103,231.20

Finding the Fourth Proportional to 130,000.08, 179,226.63 and 103,231.20

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Solution

The fourth proportional to 130,000.08, 179,226.63 and 103,231.20 is: 142,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,000.08 : 179,226.63 = 103,231.20 : x
  2. Step 2: Convert to fraction form
    130,000.08/179,226.63 = 103,231.20/x
  3. Step 3: Cross multiply
    130,000.08x = 179,226.63 × 103,231.20
  4. Step 4: Simplify right side
    130,000.08x = 18,501,780,086.86
  5. Step 5: Solve for x
    x = 18,501,780,086.86/130,000.08
  6. Step 6: Final answer
    x = 142,321.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.