Home / 130,482.62-180,062.94-76,771.10

Finding the Fourth Proportional to 130,482.62, 180,062.94 and 76,771.10

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Solution

The fourth proportional to 130,482.62, 180,062.94 and 76,771.10 is: 105,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,482.62 : 180,062.94 = 76,771.10 : x
  2. Step 2: Convert to fraction form
    130,482.62/180,062.94 = 76,771.10/x
  3. Step 3: Cross multiply
    130,482.62x = 180,062.94 × 76,771.10
  4. Step 4: Simplify right side
    130,482.62x = 13,823,629,973.03
  5. Step 5: Solve for x
    x = 13,823,629,973.03/130,482.62
  6. Step 6: Final answer
    x = 105,942.31

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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.