Home / 130,246.09-179,749.26-72,891.16

Finding the Fourth Proportional to 130,246.09, 179,749.26 and 72,891.16

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Solution

The fourth proportional to 130,246.09, 179,749.26 and 72,891.16 is: 100,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,246.09 : 179,749.26 = 72,891.16 : x
  2. Step 2: Convert to fraction form
    130,246.09/179,749.26 = 72,891.16/x
  3. Step 3: Cross multiply
    130,246.09x = 179,749.26 × 72,891.16
  4. Step 4: Simplify right side
    130,246.09x = 13,102,131,621.17
  5. Step 5: Solve for x
    x = 13,102,131,621.17/130,246.09
  6. Step 6: Final answer
    x = 100,595.20

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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.