Home / 130,888.20-180,620.94-79,986.13

Finding the Fourth Proportional to 130,888.20, 180,620.94 and 79,986.13

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Solution

The fourth proportional to 130,888.20, 180,620.94 and 79,986.13 is: 110,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,888.20 : 180,620.94 = 79,986.13 : x
  2. Step 2: Convert to fraction form
    130,888.20/180,620.94 = 79,986.13/x
  3. Step 3: Cross multiply
    130,888.20x = 180,620.94 × 79,986.13
  4. Step 4: Simplify right side
    130,888.20x = 14,447,170,402.03
  5. Step 5: Solve for x
    x = 14,447,170,402.03/130,888.20
  6. Step 6: Final answer
    x = 110,377.94

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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.