Home / 130,188.27-179,651.32-72,817.64

Finding the Fourth Proportional to 130,188.27, 179,651.32 and 72,817.64

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Solution

The fourth proportional to 130,188.27, 179,651.32 and 72,817.64 is: 100,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,188.27 : 179,651.32 = 72,817.64 : x
  2. Step 2: Convert to fraction form
    130,188.27/179,651.32 = 72,817.64/x
  3. Step 3: Cross multiply
    130,188.27x = 179,651.32 × 72,817.64
  4. Step 4: Simplify right side
    130,188.27x = 13,081,784,064.98
  5. Step 5: Solve for x
    x = 13,081,784,064.98/130,188.27
  6. Step 6: Final answer
    x = 100,483.58

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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.