Home / 142,147.57-213,254.16-75,651.83

Finding the Fourth Proportional to 142,147.57, 213,254.16 and 75,651.83

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Solution

The fourth proportional to 142,147.57, 213,254.16 and 75,651.83 is: 113,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,147.57 : 213,254.16 = 75,651.83 : x
  2. Step 2: Convert to fraction form
    142,147.57/213,254.16 = 75,651.83/x
  3. Step 3: Cross multiply
    142,147.57x = 213,254.16 × 75,651.83
  4. Step 4: Simplify right side
    142,147.57x = 16,133,067,459.11
  5. Step 5: Solve for x
    x = 16,133,067,459.11/142,147.57
  6. Step 6: Final answer
    x = 113,495.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.