Home / 142,320.12-213,184.92-82,975.80

Finding the Fourth Proportional to 142,320.12, 213,184.92 and 82,975.80

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Solution

The fourth proportional to 142,320.12, 213,184.92 and 82,975.80 is: 124,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.12 : 213,184.92 = 82,975.80 : x
  2. Step 2: Convert to fraction form
    142,320.12/213,184.92 = 82,975.80/x
  3. Step 3: Cross multiply
    142,320.12x = 213,184.92 × 82,975.80
  4. Step 4: Simplify right side
    142,320.12x = 17,689,189,284.94
  5. Step 5: Solve for x
    x = 17,689,189,284.94/142,320.12
  6. Step 6: Final answer
    x = 124,291.56

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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.