Home / 130,273.72-179,765.03-72,909.63

Finding the Fourth Proportional to 130,273.72, 179,765.03 and 72,909.63

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Solution

The fourth proportional to 130,273.72, 179,765.03 and 72,909.63 is: 100,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,273.72 : 179,765.03 = 72,909.63 : x
  2. Step 2: Convert to fraction form
    130,273.72/179,765.03 = 72,909.63/x
  3. Step 3: Cross multiply
    130,273.72x = 179,765.03 × 72,909.63
  4. Step 4: Simplify right side
    130,273.72x = 13,106,601,824.24
  5. Step 5: Solve for x
    x = 13,106,601,824.24/130,273.72
  6. Step 6: Final answer
    x = 100,608.18

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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.