Home / 130,645.51-180,290.67-74,056.88

Finding the Fourth Proportional to 130,645.51, 180,290.67 and 74,056.88

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Solution

The fourth proportional to 130,645.51, 180,290.67 and 74,056.88 is: 102,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,645.51 : 180,290.67 = 74,056.88 : x
  2. Step 2: Convert to fraction form
    130,645.51/180,290.67 = 74,056.88/x
  3. Step 3: Cross multiply
    130,645.51x = 180,290.67 × 74,056.88
  4. Step 4: Simplify right side
    130,645.51x = 13,351,764,513.31
  5. Step 5: Solve for x
    x = 13,351,764,513.31/130,645.51
  6. Step 6: Final answer
    x = 102,198.42

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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.