Home / 130,131.22-179,509.35-89,866.12

Finding the Fourth Proportional to 130,131.22, 179,509.35 and 89,866.12

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Solution

The fourth proportional to 130,131.22, 179,509.35 and 89,866.12 is: 123,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,131.22 : 179,509.35 = 89,866.12 : x
  2. Step 2: Convert to fraction form
    130,131.22/179,509.35 = 89,866.12/x
  3. Step 3: Cross multiply
    130,131.22x = 179,509.35 × 89,866.12
  4. Step 4: Simplify right side
    130,131.22x = 16,131,808,788.22
  5. Step 5: Solve for x
    x = 16,131,808,788.22/130,131.22
  6. Step 6: Final answer
    x = 123,965.71

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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.