Home / 130,191.36-179,673.12-72,849.57

Finding the Fourth Proportional to 130,191.36, 179,673.12 and 72,849.57

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Solution

The fourth proportional to 130,191.36, 179,673.12 and 72,849.57 is: 100,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,191.36 : 179,673.12 = 72,849.57 : x
  2. Step 2: Convert to fraction form
    130,191.36/179,673.12 = 72,849.57/x
  3. Step 3: Cross multiply
    130,191.36x = 179,673.12 × 72,849.57
  4. Step 4: Simplify right side
    130,191.36x = 13,089,109,532.56
  5. Step 5: Solve for x
    x = 13,089,109,532.56/130,191.36
  6. Step 6: Final answer
    x = 100,537.47

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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.