Home / 139,965.52-210,033.24-56,857.36

Finding the Fourth Proportional to 139,965.52, 210,033.24 and 56,857.36

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Solution

The fourth proportional to 139,965.52, 210,033.24 and 56,857.36 is: 85,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,965.52 : 210,033.24 = 56,857.36 : x
  2. Step 2: Convert to fraction form
    139,965.52/210,033.24 = 56,857.36/x
  3. Step 3: Cross multiply
    139,965.52x = 210,033.24 × 56,857.36
  4. Step 4: Simplify right side
    139,965.52x = 11,941,935,538.65
  5. Step 5: Solve for x
    x = 11,941,935,538.65/139,965.52
  6. Step 6: Final answer
    x = 85,320.55

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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.