Home / 141,172.60-210,743.42-120,964.51

Finding the Fourth Proportional to 141,172.60, 210,743.42 and 120,964.51

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Solution

The fourth proportional to 141,172.60, 210,743.42 and 120,964.51 is: 180,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,172.60 : 210,743.42 = 120,964.51 : x
  2. Step 2: Convert to fraction form
    141,172.60/210,743.42 = 120,964.51/x
  3. Step 3: Cross multiply
    141,172.60x = 210,743.42 × 120,964.51
  4. Step 4: Simplify right side
    141,172.60x = 25,492,474,536.02
  5. Step 5: Solve for x
    x = 25,492,474,536.02/141,172.60
  6. Step 6: Final answer
    x = 180,576.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.