Home / 130,119.82-179,561.49-72,755.62

Finding the Fourth Proportional to 130,119.82, 179,561.49 and 72,755.62

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Solution

The fourth proportional to 130,119.82, 179,561.49 and 72,755.62 is: 100,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,119.82 : 179,561.49 = 72,755.62 : x
  2. Step 2: Convert to fraction form
    130,119.82/179,561.49 = 72,755.62/x
  3. Step 3: Cross multiply
    130,119.82x = 179,561.49 × 72,755.62
  4. Step 4: Simplify right side
    130,119.82x = 13,064,107,533.07
  5. Step 5: Solve for x
    x = 13,064,107,533.07/130,119.82
  6. Step 6: Final answer
    x = 100,400.60

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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.