Home / 130,188.20-179,651.24-72,817.59

Finding the Fourth Proportional to 130,188.20, 179,651.24 and 72,817.59

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Solution

The fourth proportional to 130,188.20, 179,651.24 and 72,817.59 is: 100,483.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,188.20 : 179,651.24 = 72,817.59 : x
  2. Step 2: Convert to fraction form
    130,188.20/179,651.24 = 72,817.59/x
  3. Step 3: Cross multiply
    130,188.20x = 179,651.24 × 72,817.59
  4. Step 4: Simplify right side
    130,188.20x = 13,081,769,973.22
  5. Step 5: Solve for x
    x = 13,081,769,973.22/130,188.20
  6. Step 6: Final answer
    x = 100,483.53

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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.